Re: [Gretl-users] Correlation heatplot
On Tue, 3 Jan 2017, Artur Tarassow wrote:
Dear all,
I programmed a function which plots a nice correlation heatmap between
various variables. However, I would like to neglect "nan" in the matrix.
I sent gnuplot the command "printf "set datafile missing 'nan'\n"
but it
doesn't work, and I still obtain the error: "warning: matrix contains missing
or undefined values. Btw, the plot is compiled nicely but I can't get rid of
this error message.
I am using gnuplot 5.0 patchlevel 4, but I remember that this issue already
occurred in previous version. Has anyone a clue?
Gretl tends to assume that if we hear anything from gnuplot on stderr,
then something has gone wrong in generating a plot. But we have a
short list of "false positives" where gnuplot squawks at nothing much.
I've added this warning to the list (in git) so the script should now
run OK.
All the same, I wonder, why not just show the whole matrix rather than
just a triangle?
Allin