[Octave-bug-tracker] [bug #31542] semilogy and axis tight

[Rik]

Update of bug #31542 (project octave):

                  Status:                    None => Need Info              

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Follow-up Comment #1:

How is this an error?  The logarithm of a negative value is a complex number
which can't be displayed on a 2-D graph.  The automatic axis sizing code
therefore restricts the plot to only positive values.  When I run your
semilogy command I get the following "warning: axis: omitting nonpositive data
in log plot".

axis("tight") tries to set the axes to the min/max values of the dataset, but
it can't do that if the range isn't made from real numbers.

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