Thomas Witelski

Thank you very much, this takes care of all of my questions! best, tom On Tue, 25 Jul 2023, Hiroki Motoyoshi wrote: What you want to draw seems to be a heatmap of equally spaced grids, regardless of whether the axes are log-scale or not. Here is a method to generate matrix indexes using pseudo columns in the using specification and using the xtic() and ytic() to use x, y values from data file as axis tic labels. ``` retrieving record number of first block stat 'data.txt' every :::1::1 nooutput NY...

Thank you very much for your follow-up. Let me try to explain my concerns further. I'm using G N U P L O T Version 5.4 patchlevel 8 last modified 2023-06-01 (fedora linux) attached is a data file on a regular, complete grid (log-spaced in both directions) plot1.png was produced using the command: gnuplot> plot 'data' u 1:2:3 w image it is correct (looks as expected for the z-col data matrix) except for the labeling of the axes If i set the axes to be logscale and replot, gnuplot> set log xy gnuplot>...

xtics ytics in plot with image 2d heat maps