Re: [Ifeffit] Handling large data sets in Athena (and energy dispersive calibration)

2014-12-18 Thread Godfrey, Ian
Dear Matt and Bruce, Thanks for your comments and hints. I will give Larch a spin analysing these data and see how I get on, if I have any feedback I'll send it here. Matt, you've got the calibration parameters I used completely right! (I calibrated the foil references in the old Athena and the

Re: [Ifeffit] Handling large data sets in Athena (and energy dispersive calibration)

2014-12-18 Thread Bruce Ravel
Hey Ian, Basically, ditto on what Matt said. 300 columns is not something that Athena is designed to do. My opinion is that you (or the beamline you visit) should have some kind of tool to turn a file that into XAS. As for the energy dispersive thing -- it's long been on the to do list.

Re: [Ifeffit] Handling large data sets in Athena (and energy dispersive calibration)

2014-12-18 Thread Matt Newville
Ian, This would be a perfect example for why Larch exists With it, you can read this file, and even make sense of it, even if Ifeffit (and so by extension, current versions of Athena) cannot. With Larch (essentially, Python), it is as simple as: larch> data = loadtxt(open('citrate_003_log_0_