Re: 2d matrix plots 'with labels'

[Dima K. <gn...@di...>]

sfeam <sf...@us...> writes:

> On Wednesday, 26 July 2017 14:49:07 Dima Kogan wrote:
>>
>> Plotting a matrix of numbers as points with varying colors works ok:
>>
>>     plot '-' matrix using 1:2:3 notitle with points pt 7 ps 2 palette
>>     1 2 3
>>     4 5 6
>>     e
>>
>> I get 6 points in a grid, with different colors. I would expect that
>> plotting the same thing 'with labels' should work too, but with printed
>> text instead of points
>>
>>     plot '-' matrix using 1:2:3 notitle with labels
>>     1 2 3
>>     4 5 6
>>     e
>>
>> I get the grid of printed text, but each "point" is "6" and not "1",
>> "2", ...
>>
>> Bug?
>
> "with labels" wants a string, not a number.
> This should work:
>
>   plot '-' matrix using 1:2:(sprintf("%d",column(3))) with labels
>
> I have no idea why it prints "6" though.  That's a mystery.

Hmmm. I can replace the 1,2,3 thing with aaa,bbb,ccc, and it still
prints the last one. And this works ok for non-matrix plots, so it
sounds like a misbehavior to me. I'll try to find the time to look
through the sources and fix it; hopefully.