Ticket #5364 (closed: fixed)

Opened 8 years ago

Last modified 5 years ago

MUON: 'bug' in calMuonDeadTime

Reported by: Anders Markvardsen Owned by: Anders Markvardsen
Priority: critical Milestone: Release 2.1.1
Component: Mantid Keywords: PatchCandidate,Released
Cc: sean.giblin@…, stephen.cottrell@… Blocked By:
Blocking: Tester: Robert Whitley

Description

When running EMU00030604 with FirstGoodData = 0.5 and LastGoodData = 10.0 then the following warning messages appears:

Fit falled. Status = cannot reach the specified tolerance in X For workspace index 2 Fit falled. Status = cannot reach the specified tolerance in F For workspace index 4 Fit falled. Status = cannot reach the specified tolerance in X For workspace index 7 Fit falled. Status = cannot reach the specified tolerance in F For workspace index 10 Fit falled. Status = cannot reach the specified tolerance in X For workspace index 11 Fit falled. Status = cannot reach the specified tolerance in X For workspace index 12 Fit falled. Status = cannot reach the specified tolerance in X For workspace index 13 Fit falled. Status = cannot reach the specified tolerance in X For workspace index 15 Fit falled. Status = cannot reach the specified tolerance in X For workspace index 16 Fit falled. Status = cannot reach the specified tolerance in X For workspace index 18 Fit falled. Status = cannot reach the specified tolerance in F For workspace index 19 Fit falled. Status = cannot reach the specified tolerance in F For workspace index 21 Fit falled. Status = cannot reach the specified tolerance in X For workspace index 24 Fit falled. Status = cannot reach the specified tolerance in X For workspace index 26 Fit falled. Status = cannot reach the specified tolerance in F For workspace index 27 Fit falled. Status = cannot reach the specified tolerance in X For workspace index 28 Fit falled. Status = cannot reach the specified tolerance in X For workspace index 30 Fit falled. Status = cannot reach the specified tolerance in X For workspace index 31 Fit falled. Status = cannot reach the specified tolerance in X For workspace index 33 Fit falled. Status = cannot reach the specified tolerance in X For workspace index 34 Fit falled. Status = cannot reach the specified tolerance in X

which indicates that there is room for improving how the fitting is done in calMuonDeadTime.

Note these warning was not displayed in previous version of Mantid hence the reason to set this ticket as a 'defect'

Change History

comment:1 Changed 8 years ago by Anders Markvardsen

  • Cc sean.giblin@…, stephen.cottrell@… added

comment:2 Changed 8 years ago by Roman Tolchenov

Re #5364. Changed the minimizer to Leveberg-MarquardtMD

Corrected minimizer's stop conditions to work better with linear fits.

Changeset: 4c8436b7ecd5d1a95030dec84fa8871ceb0c30d9

comment:3 Changed 8 years ago by Anders Markvardsen

  • Keywords PatchCandidate added

comment:4 Changed 8 years ago by Nick Draper

  • Milestone changed from Release 2.2 to Release 2.1.1

Moved for inclusion in the 2.1.1 patch

comment:5 Changed 8 years ago by Anders Markvardsen

  • Status changed from new to accepted

To test:

  1. load EMU00030604.nxs
  1. Execute CalMuonDeadTime. Use e.g. FirstGoodData=0.5 and LastGoodData=10

if you do not get any warning messages about fitting in the Result Log then it works

comment:6 Changed 8 years ago by Roman Tolchenov

Re #5364. Changed the minimizer to Leveberg-MarquardtMD

Corrected minimizer's stop conditions to work better with linear fits.

Changeset: dd0cff93f5fea14b772795a0a5a2b176fc505df0

comment:7 Changed 8 years ago by Anders Markvardsen

  • Status changed from accepted to verify
  • Resolution set to fixed

comment:8 Changed 8 years ago by Roman Tolchenov

Re #5364. Changed the minimizer to Leveberg-MarquardtMD

Corrected minimizer's stop conditions to work better with linear fits.

Changeset: 4c8436b7ecd5d1a95030dec84fa8871ceb0c30d9

comment:9 Changed 8 years ago by Robert Whitley

  • Status changed from verify to verifying
  • Tester set to Robert Whitley

comment:10 Changed 8 years ago by Robert Whitley

  • Status changed from verifying to closed

Worked with no warnings.

comment:11 Changed 8 years ago by Roman Tolchenov

Re #5364. Changed the minimizer to Leveberg-MarquardtMD

Corrected minimizer's stop conditions to work better with linear fits.

Changeset: 4c8436b7ecd5d1a95030dec84fa8871ceb0c30d9

comment:12 Changed 7 years ago by Nick Draper

  • Keywords PatchCandidate,Released added; PatchCandidate removed

comment:13 Changed 5 years ago by Stuart Campbell

This ticket has been transferred to github issue ​6210

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