Re: [Gnuplot-bugs] "plot 'fil' matrix using 1:0" truncates all values to integers

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thorbjorn willoch wrote:
> If I do a
> 
>  >> plot 'fil' matrix using 1:0 with lines

> I get a line starting at (0,1) going to (1,2) to (2,3)
> 
> It is not meant to work like this, is it?

More to the point it's not meant to be used like this.  Pseudo-column 
zero is for counting data points in non-matrix data files.  In matrix 
mode you get pseudo columns 1 and 2 instead.  1 is the x coordinate 
(column count), 2 is the y coordinate (row number).

It says so in the documentation, too, although it's not overly clear. 
See 'help matrix'.