Re: [Gnuplot-info] log color bar: out of range data --> invisible

[theozh <th...@gm...>]

Hi John,

it is absolutely clear to me that negative values cannot be displayed in
log scale. If I wanted them to be displayed I would use the absolute
value abs(x). That should work for column data:
plot "ColumnData.dat" u 1:(abs($2))

Actually, I couldn't tell how one could do abs(x) on matrix data???

Nevertheless, I want to *ignore* negative values. And I do not want to
change all datafiles.
Why is gnuplot displaying negative values in log scale as maximum value?

Theo.