Thanks Fred. Simple enough to fix. As you said, it is mostly a bit of a nuisance message. In any case, it will be fixed in the next release (whenever that is...). B On 10/28/2016 12:16 PM, fred.mosselmans@diamond.ac.uk wrote:

Dear Bruce,

I realise you may be travelling soon ,

This is not a very serious bug as I have work rounds.

I was demonstrating linear combination fitting in Athena using the gold thiobacteria example this week.

I am using 9.25 on a windows 7 computer.

I read in all the data from the cynaobacteria project file

I mark 5 or 6 standards

In the LCF tab

I use marked groups, untick the sum weights to 1 option leaving just the all weights between 0 and 1 option selected.

I pick a sample spectrum eg 4.73

I select fit all combinations

It rolls through them and reports the apparently correct results but an error message is reported:

Redundant argument in sprint at C:/… /AppData/Roaming/DemeterPerl/perl/site/lib/Demeter/UI/Athena/LCF.prm line 780, <F> line 122

Clicking any of the answers in the combinatorics tab brings up this error again.

If I do a fit of lot of spectra using the same set of standards, I get a similar error message except this time it is line 906 and some of the combined spectra don’t plot properly until you refit them as a single spectra in the standards tab

I attach a log file but not a project as I assume you can find that on github!

Regards

Fred

J.F.W. Mosselmans

Prinicipal Beamline Scientist I18

Diamond Light Source Ltd

Diamond House

Harwell Campus

Didcot

OX11 0DE

P + 44 1235 778568

M + 44 7785510211

E fred.mosselmans@diamond.ac.uk

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-- Bruce Ravel ------------------------------------ bravel@bnl.gov National Institute of Standards and Technology Synchrotron Science Group at NSLS-II Building 743, Room 114 Upton NY, 11973 Homepage: http://bruceravel.github.io/home/ Software: https://github.com/bruceravel Demeter: http://bruceravel.github.io/demeter/