Re: [Gnuplot-info] missing data = empty string ?

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

I have to bother you again.
The missing data seems not work with matrix data.

If I take the following TAB-separated matrix

1	2	3	4
2	3	4	5
3	4	5	6
4	5	6	7

plot 'Matrix.dat' matrix with image

I get the expected plot.

However, if e.g. I leave out the 4s in the matrix
1	2	3	
2	3		5
3		5	6
	5	6	7

and additionally apply:	

set datafile missing ""
set datafile separator "\t"

I get the error messages:
"Matrix does not represent a grid"
or
"warning: matrix contains missing or undefined values"

So, it seems that if values in the first line are missing it's not 
working...?
Any idea to plot the data nevertheless without inserting '0' or 'NaN'?