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Top Forums UNIX for Dummies Questions & Answers Fitting data in gnuplot with xyerrorbars Post 302458646 by cosmologist on Friday 1st of October 2010 10:27:07 AM
Old 10-01-2010
Quote:
Originally Posted by Neo
Sounds to me like you have "too many columns in using specification" Smilie

One obviously path to solving this could be to look closely at the number of columns in your data and the number of columns in your gnuplot command (specification).
I am using 6 columns:
x : y : min x : max x : min y: max y

where min and max are the range of the errors for x and y... when I plot a file withe these columns I get a correct plot, but I can't use the same thing to fit the data... do you know what I mean?
 

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GPIV_PIV2GNUPLT(1)					      General Commands Manual						GPIV_PIV2GNUPLT(1)

NAME
gpiv_piv2gnuplt - Converts PIV data gnuplot data. SYNOPSIS
gpiv_piv2gnuplt [-al int] [-au int] [-h | --help] [-p | --print] [-s float] [-v | --version] [-z] filename DESCRIPTION
gpiv_piv2gnuplt converts PIV data to gnuplot vectors for displaying and printing PIV the estimators in a graphical way. This program does not use the parameter resources from libgpiv. The parameters may be defined by the command line options as explained below. Options -al L Draws an annotation vector with length L. -al UNIT Define unit of annotation vector (defaul m/s). -h | --help On-line help. -p | --print Prints parameters to stdout. -s SCALE Scale factor for graphic output with gnuplot. -v | --version Print version information on standard output, then exits successfully. -z Full zoom (for scaled data). filename Filename containing the input PIV data. SEE ALSO
gpivtools AUTHOR
Gerber Van der Graaf 9 November 2006 GPIV_PIV2GNUPLT(1)
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