Rotating a plot in gnuplot

问题

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.

The plot is created by this script in the terminal :

set palette grey
plot 'color_map.dat' matrix with image

回答1:

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.

来源：https://stackoverflow.com/questions/32402697/rotating-a-plot-in-gnuplot