Use Fit algorithm in IndirectDtaAnalysis convFit

[Martyn Gigg]

Spencer has updated his convFit routines to use the Fit functionality and the changes need to be merged into IndirectDataAnalysis

[Martyn Gigg]

Use Fit in furyFitSeq in IndirectDataAnalysis. Refs #7399

Uses the Fit algorithm instead of some custom code before.

Changeset: 12924d1a8281143c4e38cb1449a5d9b3482d1e2b

[Martyn Gigg]

Branch: feature/7399_update_indirect_convfit

Tester: The script below will help you run the fitting. You will need to make sure that the systemtests data directory is in your data search path. You should end up with 4 workspaces, one of which is a GroupWorkspace with a number of members that matches the number of spectra in the input to furyfitSeq: irs53664_graphite002_iqt. You should also have a parameter table that contains the fit parameters and the usual fit workspace containing the original fit results.

from IndirectDataAnalysis import fury, furyfitSeq

samples = ['irs53664_graphite002_red.nxs']
resolution = 'irs53664_graphite002_res.nxs'
rebin = '-0.400000,0.002000,0.400000'
# Fury Seq Fit
func = r'name=LinearBackground,A0=0,A1=0,ties=(A1=0);name=UserFunction,Formula=Intensity*exp(-(x/Tau)),Intensity=0.355286,Tau=100;ties=(f1.Intensity=1-f0.A0)'
ftype = '1E_s'
startx = 0.013717
endx = 0.169171

fury_ws = fury(samples, 
               resolution, 
               rebin, 
               Save=False, 
               Verbose=False, 
               Plot=False)

# Test FuryFit Sequential
furyfitSeq_ws = furyfitSeq(fury_ws[0],
                           func,
                           ftype, 
                           startx, 
                           endx,
                           Save=False,
                           Plot='None',
                           Verbose=False)

[Roman Tolchenov]

Merge remote-tracking branch 'origin/feature/7399_update_indirect_convfit'

[Roman Tolchenov]

Ran the script. Everything works.

[Stuart Campbell]

This ticket has been transferred to github issue ​8245