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1-How can I rotate my plot so y would be the new x axis and vice versa?

2- Change the maximum value of y axis from 60 to 100. enter image description here

The plot is created by this script in the terminal :

set palette grey
plot 'color_map.dat' matrix with image
Jack
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  • Have you tried taking the transpose of the matrix before plotting it? As for axis scaling, look at the documentation: http://gnuplot.sourceforge.net/docs_4.2/node294.html – 7VoltCrayon Sep 04 '15 at 17:06

1 Answers1

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You can exchange the x and y axes with the using modifier. (Just like for ordinary plots, except that for matrix data, columns 1 and 2 are not in your data file, but are inferred.)

plot 'color_map.dat' matrix using 2:1:3 with image

If you actually just want to change the maximum value on the y (new x) axis, you would use set xrange[:100]. But it sounds like you might actually want to scale the data itself, in which case you could use

plot 'color_map.dat' matrix using ($2/60.*100):1:3 with image

Try help plot matrix for more details.

Steve Stuart
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