[Bug 535459] Re: Add non-linear peak fitting to xmgrace

[Alessio Treglia]

Hi Nicola, and thank you for taking the time to report this bug and
helping to make Ubuntu better.

Just two points:
 - The issue you are reporting is an upstream one and it would be nice if somebody having it could send the bug to the developers of the software. If you have done so, please tell us the number of the upstream bug (or the link), so we can add a bugwatch that will inform us about its status.
 - Would you mind to change the target release in your debdiff from 'lucid' to 'lucid-proposed'? You may find useful information information about Ubuntu's SRU here: https://wiki.ubuntu.com/StableReleaseUpdates#Procedure

Thanks in advance.

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Add non-linear peak fitting to xmgrace
https://bugs.launchpad.net/bugs/535459
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Status in Grace: New
Status in “grace” package in Ubuntu: Fix Released
Status in “grace” package in Debian: Fix Released

Bug description:
Binary package hint: grace

One of the most used features in software for scientific data analysis is the ability to perform non linear peak fitting (specifically Lorentzian and Gaussian fits). Xmgrace sorely lacks this capability, unless you consider adding manually the required formula.

The attached patch attempts to resolve this issue, by extending the non-linear panel with two menu entries (under a new "Library" menu entry) for: a single peak Lorentzian or Gaussian (see attached image). The modifications are minor, and flexible for future implementations of other possible usable formulas and more important, for multi-peak fitting.

I realize this patch should be pushed upstream first. However development upstream has been nonexistent for more than a year now, and the patch I submitted many months back is still sitting there. Given the more active development via Debian, I try this as a more viable mean to get it through.