Re: [Gnuplot-bugs] why i cannot draw the file m10

[Hans-Bernhard B. <br...@ph...>]

On Thu, 27 May 2004, Elisabeth Ressayre wrote:

> In the attached file m10_bis, I explain my problem to draw the file m10.

[It would have been more helpful to keep the explanation in the mail body,
and only the data file in the attachment.]

The root of this problem is that the y range of your data is degenerate.  
All the y values are the same, within a *very* small error margin, way
down close to the technical limit of what a double-precision floating
point number can represent (1 +/- n * DBL_EPS, for small integer 'n').

gnuplot's automatic tic step sizing algorithm fails, this close to the
boundary.  As a workaround, you could remove the constant 1.0 from the
data before plotting:

	plot 'datafile' u 1:($2-1.0)


-- 
Hans-Bernhard Broeker (br...@ph...)
Even if all the snow were burnt, ashes would remain.