1 | #pragma rtGlobals=1 // Use modern global access method. |
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2 | #pragma version=3.00 |
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3 | #pragma IgorVersion=6.1 |
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4 | |
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5 | /////// |
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6 | // JAN-MAY 2018 |
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7 | // |
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8 | // |
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9 | // This is a first approximation to model slit smeared VSANS data |
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10 | // - the dQv value is now a "per-Q" quantity, rather than a single global value |
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11 | // - the wavelength smearing must be accounted for by a separate numerical integral |
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12 | // BEFORE this step is applied. |
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13 | // -- this is significant issue for White Beam conditions |
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14 | // |
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15 | |
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16 | |
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17 | |
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18 | |
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19 | |
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20 | //Functions for doing USANS Slit smearing by method of weight matrix |
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21 | //Routines originally from J Barker fortran code |
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22 | //Translated to IGOR by M-H Kim |
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23 | //Updated to use IGOR features and integrated into SANS Macros by A J Jackson |
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24 | // |
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25 | // AJJ |
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26 | // July 26 2007 - Modified functions to work with new SANS Analysis Macros |
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27 | // - pass basestr to functions to determine wave names and avoid globals |
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28 | // - pass dQv to functions to avoid globals |
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29 | // - pass N to CalcR to avoid globals |
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30 | |
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31 | ////////////// |
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32 | // |
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33 | //// July 2008 SRK |
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34 | // |
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35 | // For fitting withe cursors, the matrix must be recalculated for the exact range of the data |
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36 | // - but the inital dependency of the model (any number of them) was (were) set up to use the full matrix |
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37 | // -- so: |
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38 | // $_res is the resolution for the dependencies. It is always the full size of the data set. If cursors are used, |
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39 | // it is padded with zeroes at the edges to fill. |
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40 | // |
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41 | // weights_save: is a pristine copy of the resolution matrix for the full data set, as when loaded |
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42 | // $_qt, $_qi, $_qs, $_rest: are "trimmed" sets that use the range specified by the cursors. They are created |
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43 | // at load time and are initially the full data range. |
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44 | // |
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45 | // there is a wave note attached to $_res that has the current point range for the matrix. This is what the |
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46 | // $_rest matrix is expected to be too, so keep these two matrices in sync. |
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47 | // |
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48 | // during fitting, $_rest is used in the structure if cursors are used, since the matrix must be the same dimension (N) |
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49 | // as the (trimmed) data range. It may be the full data range if the cursors are at the ends of the data set. |
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50 | // If no cursors are used, then the $_res wave is used in the structure |
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51 | ////////// |
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52 | |
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53 | |
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54 | |
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55 | |
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56 | // called only by the main file loader |
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57 | // |
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58 | Function USANS_CalcWeights(basestr, dQv) |
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59 | String basestr |
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60 | Variable dQv |
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61 | |
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62 | Variable/G USANS_N=numpnts($(basestr+"_q")) |
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63 | Variable/G USANS_dQv = dQv |
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64 | String/G root:Packages:NIST:USANS_basestr = basestr //this is the "current data" for slope and weights |
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65 | |
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66 | Make/D/O/N=(USANS_N,USANS_N) $(basestr+"_res") |
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67 | Make/D/O/N=(USANS_N,USANS_N) W1mat |
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68 | Make/D/O/N=(USANS_N,USANS_N) W2mat |
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69 | Make/D/O/N=(USANS_N,USANS_N) Rmat |
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70 | Wave weights = $(basestr+"_res") |
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71 | |
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72 | //Variable/G USANS_m = EnterSlope(baseStr) |
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73 | Variable/G USANS_m = -4 |
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74 | Variable/G USANS_slope_numpnts = 15 |
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75 | String/G trimStr="" //null string if NOT using cursors, "t" if yes (and re-calculating) |
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76 | |
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77 | Print "---- Calculating Weighting Matrix for USANS Data ----" |
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78 | |
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79 | EnterSlope(basestr) |
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80 | |
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81 | //Deal with broken Pauseforuser |
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82 | SetDataFolder $("root:"+basestr) |
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83 | |
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84 | print USANS_m |
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85 | |
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86 | if (USANS_m == 999) |
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87 | KillWaves/Z $(basestr+"_res"),W1Mat,W2mat,Rmat |
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88 | return(1) |
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89 | endif |
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90 | |
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91 | Variable tref = startMSTimer |
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92 | print "Calculating W1..." |
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93 | W1mat = (p <= q ) && (q <= USANS_N-2) ? CalcW1(p,q) : 0 |
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94 | print "Calculating W2..." |
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95 | W2mat = (p+1 <= q ) && (q <= USANS_N-1) ? CalcW2(p,q) : 0 |
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96 | print "Calculating Remainders..." |
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97 | Rmat = (q == USANS_N-1) ? CalcR(p) : 0 |
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98 | // print "Summing weights..." |
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99 | weights = W1mat + W2mat + Rmat |
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100 | print "Done" |
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101 | Variable ms = stopMSTimer(tref) |
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102 | print "Time elapsed = ", ms/1e6, "s" |
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103 | |
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104 | // put the point range of the matrix in a wave note (this is the full range) |
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105 | String nStr="" |
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106 | sprintf nStr,"P1=%d;P2=%d;",0,USANS_N-1 |
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107 | Note weights ,nStr |
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108 | |
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109 | // make a set of "trimmed" data that is currently the full data set |
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110 | // but will be trimmed as needed for use with cursors |
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111 | // this is necessary to handle the base case of cursors that use the full range of the data! |
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112 | Duplicate/O $(baseStr+"_q") $(baseStr+"_qt") |
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113 | Duplicate/O $(baseStr+"_i") $(baseStr+"_it") |
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114 | Duplicate/O $(baseStr+"_s") $(baseStr+"_st") |
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115 | Duplicate/O weights, $(basestr+"_res"+"t") |
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116 | |
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117 | // save a copy of the untainted matrix to return to... |
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118 | Duplicate/O weights, weights_save |
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119 | |
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120 | return(0) |
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121 | End |
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122 | |
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123 | // re-calculate the weighting matrix, maybe easier to do in a separate function |
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124 | // |
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125 | // supposedly I'm in the data folder, not root:, double check to make sure |
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126 | // |
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127 | Function USANS_RE_CalcWeights(baseStr,pt1,pt2) |
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128 | String baseStr |
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129 | Variable pt1,pt2 |
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130 | |
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131 | SetDataFolder $("root:"+baseStr) |
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132 | NVAR USANS_dQv = USANS_dQv |
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133 | SVAR trimStr = trimStr |
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134 | trimStr="t" //yes, we're re-calculating, using trimmed data sets |
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135 | |
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136 | Variable matN |
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137 | matN=pt2-pt1+1 //new size of matrix |
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138 | |
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139 | Make/D/O/N=(matN,matN) $(basestr+"_res"+trimStr) //this is a temporary matrix |
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140 | Make/D/O/N=(matN,matN) W1mat |
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141 | Make/D/O/N=(matN,matN) W2mat |
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142 | Make/D/O/N=(matN,matN) Rmat |
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143 | Wave tmpWeights = $(basestr+"_res"+trimStr) |
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144 | Wave fullWeights = $(basestr+"_res") |
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145 | |
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146 | // make a trimmed set of QIS waves to match the size selected by the cursors |
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147 | // == "t" added to the suffix |
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148 | WAVE qval = $(baseStr+"_q") |
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149 | WAVE ival = $(baseStr+"_i") |
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150 | WAVE sval = $(baseStr+"_s") |
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151 | WAVE dQvW = $(baseStr+"_dQv") |
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152 | Duplicate/O/R=[pt1,pt2] qval $(baseStr+"_qt") |
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153 | Duplicate/O/R=[pt1,pt2] ival $(baseStr+"_it") |
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154 | Duplicate/O/R=[pt1,pt2] sval $(baseStr+"_st") |
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155 | Duplicate/O/R=[pt1,pt2] dQvW $(baseStr+"_dQvt") |
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156 | WAVE qt = $(baseStr+"_qt") //these are trimmed based on the cursor points |
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157 | WAVE it = $(baseStr+"_it") |
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158 | WAVE st = $(baseStr+"_st") |
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159 | WAVE dQvt = $(baseStr+"_dQvt") |
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160 | |
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161 | //Variable/G USANS_m = EnterSlope(baseStr) |
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162 | Variable/G USANS_m = -4 |
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163 | Variable/G USANS_slope_numpnts = 15 |
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164 | // must reset the global for baseStr to this set, otherwise it will look for the last set loaded |
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165 | String/G root:Packages:NIST:USANS_basestr = basestr //this is the "current data" for slope and weights |
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166 | |
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167 | |
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168 | Print "---- Calculating Weighting Matrix for USANS Data ----" |
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169 | |
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170 | EnterSlope(basestr) |
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171 | |
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172 | //Deal with broken Pauseforuser |
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173 | SetDataFolder $("root:"+basestr) |
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174 | |
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175 | print USANS_m |
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176 | |
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177 | if (USANS_m == 999) |
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178 | KillWaves/Z $(basestr+"_res"),W1Mat,W2mat,Rmat |
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179 | return(1) |
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180 | endif |
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181 | |
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182 | Variable tref = startMSTimer |
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183 | print "Calculating W1..." |
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184 | W1mat = (p <= q ) && (q <= matN-2) ? CalcW1(p,q) : 0 |
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185 | print "Calculating W2..." |
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186 | W2mat = (p+1 <= q ) && (q <= matN-1) ? CalcW2(p,q) : 0 |
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187 | print "Calculating Remainders..." |
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188 | Rmat = (q == matN-1) ? CalcR(p) : 0 |
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189 | // print "Summing weights..." |
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190 | tmpWeights = W1mat + W2mat + Rmat |
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191 | print "Done" |
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192 | Variable ms = stopMSTimer(tref) |
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193 | print "Time elapsed = ", ms/1e6, "s" |
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194 | |
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195 | // - put the smaller matrix into the larger one (padded w/zero) |
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196 | // get the smaller triangular weights into the proper place in the full matrix |
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197 | // |
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198 | // this is necessary since the original dependency (as plotted) was set up using the |
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199 | // full data set in the STRUCT |
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200 | fullWeights = 0 |
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201 | fullWeights[pt1,pt2][pt1,pt2] = tmpWeights[p-pt1][q-pt1] |
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202 | |
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203 | |
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204 | // put the point range of the matrix in a wave note |
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205 | String nStr="" |
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206 | sprintf nStr,"P1=%d;P2=%d;",pt1,pt2 |
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207 | Note/K fullWeights ,nStr |
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208 | |
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209 | return(0) |
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210 | End |
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211 | |
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212 | // trimStr = "" if the full (original) data set is to be used, == "t" if the set is trimmed to cursors |
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213 | Function EnterSlope(baseStr) |
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214 | String baseStr |
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215 | |
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216 | // NVAR USANS_m,USANS_slope_numpnts |
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217 | NVAR USANS_m = $("root:"+baseStr+":USANS_m") |
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218 | NVAR USANS_slope_numpnts = $("root:"+baseStr+":USANS_slope_numpnts") |
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219 | SVAR trimStr = $("root:"+baseStr+":trimStr") |
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220 | |
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221 | // Variable slope=-4 |
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222 | |
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223 | // Prompt slope "Enter a slope for the file \""+ baseStr + "\"" |
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224 | // DoPrompt "Enter Slope", slope |
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225 | // If (V_Flag) |
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226 | // return (999) //return a bogus slope if the user canceled |
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227 | // Endif |
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228 | // print "slope=", slope |
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229 | // return slope |
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230 | |
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231 | NewPanel /W=(600,300,1000,700)/N=USANS_Slope as "USANS Slope Extrapolation" |
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232 | SetDrawLayer UserBack |
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233 | Button button_OK,pos={270,360},size={100,20},title="Accept Slope",font="Geneva" |
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234 | Button button_OK,proc=USANS_Slope_ButtonProc |
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235 | Button button_SlopeCalc,pos={270,310},size={100,20},title="Calculate",font="Geneva" |
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236 | Button button_SlopeCalc,proc=USANS_Slope_ButtonProc |
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237 | SetVariable setvar_numpnts, pos={20,310}, size={130,19}, title="# Points",fSize=13 |
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238 | SetVariable setvar_numpnts, value= USANS_slope_numpnts |
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239 | SetVariable setvar_Slope,pos={160,310},size={90,19},title="Slope",fSize=13 |
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240 | SetVariable setvar_Slope,limits={-inf,inf,0},value= USANS_m |
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241 | SetVariable setvar_slope, proc=USANS_ManualSlope |
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242 | |
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243 | Display/W=(9,6,402,305)/HOST=USANS_Slope $(basestr+"_i"+trimStr) vs $(basestr+"_q"+trimStr) |
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244 | RenameWindow #,SlopePlot |
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245 | ErrorBars/T=0/W=USANS_Slope#SlopePlot $(basestr+"_i"+trimStr), Y wave=($(basestr+"_s"+trimStr),$(basestr+"_s"+trimStr)) |
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246 | ModifyGraph log=1 |
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247 | ModifyGraph mode=3,msize=3,marker=1,rgb=(0,0,0) |
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248 | // legend |
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249 | SetActiveSubwindow ## |
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250 | |
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251 | //Print TraceNameList("USANS_Slope#SlopePlot",";",1) |
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252 | |
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253 | //USANS_CalculateSlope(basestr,USANS_slope_numpnts) |
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254 | |
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255 | PauseForUser USANS_Slope |
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256 | |
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257 | |
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258 | // return slope |
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259 | |
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260 | End |
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261 | |
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262 | Function USANS_CalculateSlope(basestr, nend) |
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263 | String basestr |
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264 | Variable nend |
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265 | |
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266 | // NVAR USANS_m |
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267 | NVAR USANS_m = $("root:"+baseStr+":USANS_m") |
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268 | SVAR trimStr = $("root:"+baseStr+":trimStr") |
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269 | |
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270 | Wave iw = $(basestr+"_i"+trimStr) |
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271 | Wave qw = $(basestr+"_q"+trimStr) |
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272 | Wave sw = $(basestr+"_s"+trimStr) |
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273 | |
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274 | Variable num_extr=25 |
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275 | // Make extra waves for extrapolation |
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276 | // Taken from DSM_SetExtrWaves |
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277 | |
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278 | Make/O/D/N=(num_extr) extr_hqq,extr_hqi |
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279 | extr_hqi=1 //default values |
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280 | |
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281 | //set the q-range |
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282 | Variable qmax,num |
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283 | |
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284 | num=numpnts(qw) |
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285 | qmax=6*qw[num-1] |
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286 | |
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287 | // num-1-nend puts the extrapolation over the data set, as well as extending it |
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288 | extr_hqq = qw[num-1-nend] + x * (qmax-qw[num-1-nend])/num_extr |
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289 | |
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290 | |
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291 | // Modifed from DSM_DoExtraploate in LakeDesmearing_JB.ipf |
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292 | // which is part of the USANS Reduction macros |
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293 | |
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294 | |
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295 | // Wave extr_lqi=extr_lqi |
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296 | // Wave extr_lqq=extr_lqq |
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297 | // Wave extr_hqi=extr_hqi |
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298 | // Wave extr_hqq=extr_hqq |
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299 | Variable/G V_FitMaxIters=300 |
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300 | Variable/G V_fitOptions=4 //suppress the iteration window |
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301 | Variable retval |
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302 | num=numpnts(iw) |
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303 | |
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304 | Make/O/D P_coef={0,1,-4} //input |
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305 | Make/O/T Constr={"K2<0","K2 > -8"} |
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306 | //(set background to zero and hold fixed) |
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307 | // initial guess |
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308 | P_coef[1] = iw[num-1]/qw[num-1]^P_coef[2] |
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309 | |
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310 | CurveFit/H="100" Power kwCWave=P_coef iw[(num-1-nend),(num-1)] /X=qw /I=1 /W=sw /C=constr |
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311 | extr_hqi=P_coef[0]+P_coef[1]*extr_hqq^P_coef[2] |
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312 | |
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313 | AppendToGraph/W=USANS_Slope#SlopePlot extr_hqi vs extr_hqq |
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314 | ModifyGraph/W=USANS_Slope#SlopePlot lsize(extr_hqi)=2 |
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315 | |
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316 | Printf "Smeared Power law exponent = %g\r",P_coef[2] |
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317 | Printf "**** For Desmearing, use a Power law exponent of %5.1f\r",P_coef[2]-1 |
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318 | |
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319 | retVal = P_coef[2]-1 |
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320 | return(retVal) |
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321 | |
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322 | End |
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323 | |
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324 | // adjust the slope manually on the graph (not fitted!!) just for visualization |
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325 | // |
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326 | // can be turned off by removing the action proc in the setVariable |
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327 | // |
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328 | Function USANS_ManualSlope(ctrlName,varNum,varStr,varName) : SetVariableControl |
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329 | String ctrlName |
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330 | Variable varNum |
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331 | String varStr |
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332 | String varName |
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333 | |
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334 | SVAR baseStr = root:Packages:NIST:USANS_basestr |
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335 | NVAR nFit = $("root:"+baseStr+":USANS_slope_numpnts") |
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336 | NVAR USANS_m = $("root:"+baseStr+":USANS_m") |
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337 | WAVE/Z extr_hqq = $("root:"+baseStr+":extr_hqq") |
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338 | WAVE/Z extr_hqi = $("root:"+baseStr+":extr_hqi") |
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339 | SVAR trimStr = $("root:"+baseStr+":trimStr") |
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340 | |
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341 | if(waveExists(extr_hqq)==0 || waveExists(extr_hqi)==0) |
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342 | return(0) // encourage the user to try to fit first... |
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343 | endif |
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344 | |
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345 | Wave iw = $("root:"+basestr+":"+basestr+"_i"+trimStr) |
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346 | Wave qw = $("root:"+basestr+":"+basestr+"_q"+trimStr) |
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347 | |
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348 | Variable matchPt,num=numpnts(iw),correctedSlope |
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349 | correctedSlope = USANS_m + 1 |
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350 | |
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351 | matchPt = iw[num-1-nFit]/(qw[num-1-nFit]^correctedSlope) |
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352 | |
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353 | extr_hqi=matchPt*extr_hqq^correctedSlope |
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354 | |
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355 | return(0) |
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356 | End |
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357 | |
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358 | Function USANS_Slope_ButtonProc(ctrlName) : ButtonControl |
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359 | String ctrlName |
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360 | |
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361 | SVAR basestr = root:Packages:NIST:USANS_basestr |
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362 | |
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363 | NVAR USANS_m = $("root:"+baseStr+":USANS_m") |
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364 | NVAR USANS_slope_numpnts = $("root:"+baseStr+":USANS_slope_numpnts") |
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365 | |
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366 | strswitch (ctrlName) |
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367 | case "button_OK": |
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368 | ControlUpdate/W=USANS_Slope setvar_Slope |
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369 | DoWindow/K USANS_Slope |
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370 | break |
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371 | case "button_SlopeCalc": |
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372 | USANS_m = USANS_CalculateSlope(basestr, USANS_slope_numpnts) |
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373 | ControlUpdate/W=USANS_Slope setvar_Slope |
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374 | break |
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375 | endswitch |
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376 | |
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377 | |
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378 | End |
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379 | |
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380 | // MAY 2018 |
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381 | // updated to use dQv as a per-q wave, not a single global value |
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382 | Function CalcW1(i,j) |
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383 | Variable i,j |
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384 | |
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385 | SVAR USANS_basestr=root:Packages:NIST:USANS_basestr |
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386 | SVAR trimStr = $("root:"+USANS_baseStr+":trimStr") |
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387 | SetDataFolder $("root:"+USANS_basestr) |
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388 | |
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389 | |
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390 | // replaced with a wave |
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391 | // NVAR dQv = USANS_dQv |
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392 | |
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393 | Variable UU,UL,dqj,rU,rL,wU,wL,dqw |
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394 | Wave Qval = $(USANS_basestr+"_q"+trimStr) |
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395 | Wave dQv = $(USANS_basestr+"_dQv"+trimStr) |
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396 | |
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397 | UU =sqrt(Qval[j+1]^2-Qval[i]^2) |
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398 | UL = sqrt(Qval[j]^2-Qval[i]^2) |
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399 | dqw = Qval[j+1]-Qval[j] |
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400 | rU = sqrt(UU^2+Qval[i]^2) |
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401 | rL = sqrt(UL^2+Qval[i]^2) |
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402 | |
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403 | wU = (1.0/dQv[i])*(Qval[j+1]*UU/dqw - 0.5*UU*rU/dqw - 0.5*Qval[i]^2*ln(UU+rU)/dqw ) |
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404 | wL = (1.0/dQv[i])*(Qval[j+1]*UL/dqw - 0.5*UL*rL/dqw - 0.5*Qval[i]^2*ln(UL+rL)/dqw ) |
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405 | |
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406 | Return wU-wL |
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407 | |
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408 | End |
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409 | |
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410 | // MAY 2018 |
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411 | // updated to use dQv as a per-q wave, not a single global value |
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412 | Function CalcW2(i,j) |
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413 | Variable i,j |
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414 | |
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415 | SVAR USANS_basestr=root:Packages:NIST:USANS_basestr |
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416 | SVAR trimStr = $("root:"+USANS_baseStr+":trimStr") |
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417 | SetDataFolder $("root:"+USANS_basestr) |
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418 | |
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419 | |
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420 | // replaced with a wave |
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421 | // NVAR dQv = USANS_dQv |
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422 | |
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423 | variable UU,UL,dqw,rU,rL,wU,wL |
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424 | |
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425 | Wave Qval = $(USANS_basestr+"_q"+trimStr) |
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426 | Wave dQv = $(USANS_basestr+"_dQv"+trimStr) |
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427 | |
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428 | UU = sqrt(Qval[j]^2-Qval[i]^2) |
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429 | UL = sqrt(Qval[j-1]^2-Qval[i]^2) |
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430 | dqw = Qval[j]-Qval[j-1] |
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431 | rU = sqrt(UU^2+Qval[i]^2) |
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432 | rL = sqrt(UL^2+Qval[i]^2) |
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433 | wU = (1.0/dQv[i])*( -Qval[j-1]*UU/dqw + 0.5*UU*rU/dqw + 0.5*Qval[i]^2*ln(UU+rU)/dqw ) |
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434 | wL = (1.0/dQv[i])*( -Qval[j-1]*UL/dqw + 0.5*UL*rL/dqw + 0.5*Qval[i]^2*ln(UL+rL)/dqw ) |
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435 | |
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436 | Return wU-wL |
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437 | |
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438 | End |
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439 | |
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440 | // MAY 2018 |
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441 | // updated to use dQv as a per-q wave, not a single global value |
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442 | Function CalcR(i) |
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443 | Variable i |
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444 | |
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445 | SVAR USANS_basestr=root:Packages:NIST:USANS_basestr |
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446 | SVAR trimStr = $("root:"+USANS_baseStr+":trimStr") |
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447 | SetDataFolder $("root:"+USANS_basestr) |
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448 | |
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449 | |
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450 | NVAR m = USANS_m |
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451 | NVAR N = USANS_N |
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452 | // replaced with a wave |
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453 | // NVAR dQv = USANS_dQv |
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454 | |
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455 | Variable retval |
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456 | Wave Qval = $(USANS_basestr+"_q"+trimStr) |
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457 | Wave Ival = $(USANS_basestr+"_i"+trimStr) |
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458 | Variable/G USANS_intQpt = Qval[i] |
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459 | Wave dQv = $(USANS_basestr+"_dQv"+trimStr) |
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460 | |
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461 | |
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462 | Variable lower = sqrt(qval[N-1]^2-qval[i]^2) |
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463 | Variable upper |
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464 | upper = dQv[i] |
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465 | |
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466 | if (i == N) |
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467 | lower = 0 |
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468 | endif |
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469 | |
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470 | retval = Integrate1D(Remainder,lower,upper) |
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471 | |
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472 | retval *= 1/dQv[i] |
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473 | |
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474 | Return retval |
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475 | |
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476 | End |
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477 | |
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478 | Function Remainder(i) |
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479 | |
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480 | Variable i |
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481 | |
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482 | SVAR USANS_basestr=root:Packages:NIST:USANS_basestr |
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483 | SVAR trimStr = $("root:"+USANS_baseStr+":trimStr") |
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484 | SetDataFolder $("root:"+USANS_basestr) |
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485 | |
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486 | NVAR m = USANS_m |
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487 | NVAR qi = USANS_intQpt |
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488 | NVAR N = USANS_N |
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489 | WAVE Qval = $(USANS_basestr+"_q"+trimStr) |
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490 | Variable retVal |
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491 | |
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492 | retVal=Qval[N-1]^(-m)*(i^2+qi^2)^(m/2) |
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493 | |
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494 | return retval |
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495 | |
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496 | End |
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