Dear Georg,
the "Axis range for axis y is approximately equal" is raised because for
the first plot, ymin=1 and ymax=1 (resulting in an axis range of 0 which
can't possibly be visualized).
The error message is a little bit misleading -- it actually doesn't have
anything to do with the "enlargelimits" option (the enlargelimits option
is only used to modify non-vanishing ranges).
The cure here is to provide a non-vanishing axis range, for example by
providing ymin and/or ymax manually or by adding more data points with
distinct y values. For example, ymin=0 will remove the error message.
Since your y data range is always 0:1, you may want to set ymin=0,ymax=1
for each plot. The enlargelimits option in its initial configuration
applies only to limits which have been determined automatically, so it
won't influence the ymin=0,ymax=1 keys.
Best regards
Christian
Am 15.09.2010 23:07, schrieb Georg Sauthoff:
> Hi,
>
> I get following message
>
> ! Package pgfplots Warning: Axis range for axis y is approximately equal;
> enlargeing it.
>
> (btw, s/enlargeing/enlarging/)
>
> because of the first plot in this (quite) minimal example:
>
> \documentclass{article}
> \usepackage{tikz}
> \usepackage{pgfplots}
> \begin{document}
> \begin{tikzpicture}
> \begin{axis}[ ybar stacked ]
> \addplot coordinates { (0, 1) (1, 1) };
> \end{axis}
> \end{tikzpicture}
> \begin{tikzpicture}
> \begin{axis}[ ybar stacked ]
> \addplot coordinates { (0, 1) (1, 0) };
> \addplot coordinates { (0, 0) (1, 1) };
> \end{axis}
> \end{tikzpicture}
> \end{document}
>
> Since I want to place several smaller plots side by side (and I
> know that the data fits in 0:1 on the y axis) I don't want that pgfplots
> automatically enlarges the y-axis. At least not that much.
>
> I basically want the y-axis on the like exactly like in the plot on the
> right.
>
> I've played around with some options, but was not successful.
>
> For example 'enlargelimits=false' has an effect, but only on the x-axis,
> where the first and last bar is cropped. Using 'ymax' does not make a
> difference, which I guess is to be expected because it only filters
> values.
>
> Probably I am missing something very basic in the manual. Thus my question:
> How can I disable the automatic enlarging of the y-axis?
>
> Or more general: How can I have full control over the y-axis?
>
> Thanks for the great pgfplots package and best regards
> Georg
>
>
>
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