Re: [Gnuplot-bugs] changing color scale with pm3d bug report

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David Koes wrote:
> If I do the following:
> set pm3d
> splot "foo" matrix
> 
> where foo contains:
> 0.492346689417028	0.492346705143181	0.488775972023425	 
> 0.488776412355709	0.488414794709724	0.488413961223616	0.488416521965528	

... then you're putting a very strange task to gnuplot.  You claim you 
have a matrix-style datafile, but actually you don't.

> the plot displays fine, 

Then what you showed can't be what you actually tested, I think.  The 
commands and data you sent consistently produce nothing but an error 
message: "Matrix does not represent a grid" here, both for version 4.0 
and the 4.2 branch head.