[gmx-users] g_analyze with multiple sets

Rebeca García Fandiño regafan at hotmail.com
Fri Jan 14 19:43:09 CET 2011

I have several files containing two columns, x and y (x is the same for all of them).
I would like to calculate the average and standar deviation (as the error bar) for the y column for all my data sets.
I have tried using g_analyze:

g_analyze -n 3 -av average.xvg -errbar stddev -f set1.xvg & set2.xvg & set3.xvg 

I get several errors:
set2.xvg: Command not found
set3.xvg: Command not found

And also: "Set 2 is horter (0) than the previous set (1775)

I have seen a similar error in the gromacs list archive, and the problem seemed to be the space before the &. I remove this whitespace and also the space after the &, but I get the same results. 

How could I solve this problem?

Thanks a lot for your help in advance.

Best wishes,

Rebeca Garcia 
Postdoctoral student
Santiago de Compostela University
regafan at hotmail.com



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