Re: [Gnuplot-info] Warning message

[Thomas S. <t.s...@fz...>]

this warning you get because you have strings in your data:

0 23 "slice 1"
0 22 "volume 12"

first, all data is read in as matrices (and so you get the warnings),
then the data block specified by 'index' is selected and plotted.

to test this, just replace the strings by numbers: there will be no
warnings anymore.


SHELTRAW, DANIEL wrote:
> 
> Hi Gnuploteers
> 
> When I run a gnuplot script (see below) that takes data from a file as
> input (see below) I am getting the following warning message:
> 
>   line 26: warning: matrix contains missing or undefined values
> 
> Could you please tell me why I am getting this warning?
> 
> Thanks again!
> 
> Here is my script:
> 
> 
> reset
> unset key
> unset colorbox
> unset border
> unset xtics
> unset ytics
> unset ztics
> set palette gray
> 
> set multiplot
> set size .25,1
> set origin 0,0
> set xrange [0:5]
> set yrange [0:25]
> plot 'test_2.dat' index 0 using 1:2:3 with labels left
> 
> set autoscale
> set size square 1
> set origin .10, 0
> plot 'test_2.dat' index 1 matrix with image
> 
> unset multiplot
> 
> 
> Here is an example data file:
> 
> 0 23 "slice 1"
> 0 22 "volume 12"
> 
> 
> 0 2 4 4 5
> 5 4 4 2 1
> 5 4 4 4 5
> 1 2 4 2 1
> 0 2 4 6 4
> 
> 
> 1 23 "slice 10"
> 1 22 "volume 22"
> 
> 
> 0 2 4 4 5
> 5 4 4 2 1
> 5 4 4 4 5
> 1 2 4 2 1
> 0 2 4 6 4
> 
> 
> ------------------------------------------------------------------------------
> 
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> gnu...@li...
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> 
> 

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