Opened 12 years ago

Closed 12 years ago

#287 closed bug (invalid)

NCNR Analysis Macro does not allow "Background" as a free fitting parameter

Reported by: anonymous Owned by: srkline
Priority: major Milestone: Release 7.0 Maintenance
Component: Analysis Keywords: NCNR SANS v7.03
Cc: Blocking:


Fit terminates with following error message when background coefficient is set as a free fitting parameter.

Error message:
Singular matrix error during curve fitting

There may be no dependence on these parameters

Tested Model: Debye

NCNR Macro Version: 7.03
Igor Version: 6.12
OS: MacOSX 10.5.8

Change History (2)

comment:1 Changed 12 years ago by ajj

  • Milestone set to Release 7.0 Maintenance

comment:2 Changed 12 years ago by srkline

  • Resolution set to invalid
  • Status changed from new to closed

This is not an issue with the program - but a symptom of something wrong with either the setup of the fit, or of the data itself. Nothing to fix here.

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