Re: help wiith datenum

[Mike Miller]

On Wed, Jul 01, 2015 at 19:35:22 -0600, Trevor Clark wrote:
> If this is a fundamental issue with datenum could work be done to add this
> functionality?

Hi Trevor, the problem is actually with the OpenGL plotting Octave uses
by default, not with the datenum function. OpenGL plots only operate on
single precision floating point values, so if your x-axis has a large
magnitude and very small relative step size, the plot will not render
correctly.

One workaround, if possible, is to subtract an initial time offset from
your datenum-based x-axis range. For example subtract off the start of
the day or week.

Another workaround is to use gnuplot for plotting instead of the default
OpenGL plotting.

The relevant open bug report is https://savannah.gnu.org/bugs/?32980.

HTH,

-- 
mike