Using Gnuplot Version 4.2 patchlevel 4 under WinXP Pro I get
Terminal type set to 'windows'
gnuplot> load "C:\gnuplotscript.dem"
"C:gnuplotscript.dem", line 11: warning: Notice: Cannot
contour non grid data. Please use "set dgrid3d".
gnuplot>
"C:\gnuplotscript.dem" contains
set cntrparam linear
set cntrparam levels 50
set cntrparam points 30
set cntrparam order 10
set contour surface
set style data lines
set ticslevel 0
set zrange [0:1]
unset key
unset surface
splot 'C:gnuplotscript.dat' using 2:1:3
pause -1
The data is inherently "gridded" as it is 10 to 100 FFT's with a
constant window size - window may be 100 to 1000 points, but is constant
for any particular plot.
The contours actually plot fine. As the number of FFT's and the window
size can vary from use to use, is there a way to solve this?
