[Ifeffit] program

Bruce Ravel bravel at bnl.gov
Fri Mar 30 08:45:23 CDT 2012


On Friday, March 30, 2012 08:56:05 am Matt Newville wrote:
> Working with 3000 spectra may be challenging with Ifeffit version
> 1.2, as the total amount of available memory is limited, but with some
> care it should be possible.

The trick to using Ifeffit 1.2 with a large data volume is to be very
careful to reuse the same Ifeffit group name so that array space gets
overwritten when importing the next data file.  If you keep generating
new group names, you will run out of available memory long before
getting to the 3000th scan.

This limits the amount of data you can look at at one time.  It is
almost certainly impossible to make a plot of all 3000 spectra at once
with Ifeffit, but it is quite possible to process the data
sequentially with Ifeffit and then write the data to a format that
some other, more capable plotting program can handle.

B

-- 

 Bruce Ravel  ------------------------------------ bravel at bnl.gov

 National Institute of Standards and Technology
 Synchrotron Methods Group at NSLS --- Beamlines U7A, X24A, X23A2
 Building 535A
 Upton NY, 11973

 My homepage:    http://xafs.org/BruceRavel
 EXAFS software: http://cars9.uchicago.edu/ifeffit/Demeter



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