From: Alan W. I. <ir...@be...> - 2001-01-30 16:13:16
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It is a feature....;-) If you look at http://plplot.org/resources/docbook-manual/plplotdoc-html-0.4.1/plaxes.html you see the following documentation which answers your question. l: Labels axis logarithmically. This only affects the labels, not the data, and so it is necessary to compute the logarithms of data points before passing them to any of the drawing routines. Alan W. Irwin email: ir...@be... phone: 250-727-2902 FAX: 250-721-7715 snail-mail: Dr. Alan W. Irwin Department of Physics and Astronomy, University of Victoria, P.O. Box 3055, Victoria, British Columbia, Canada, V8W 3P6 __________________________ Linux-powered astrophysics __________________________ On Mon, 29 Jan 2001, Cavendish McKay wrote: > I would like to make a log-log plot of some data, and I'm working in tcl > with the most recent version of plplot. I understand (from the > documentation) that when one defines logarithmic axes, xmin and xmax (as > well as ymin and ymax) must be passed as the log of the desired values, > but should this apply to the data, as well? When I try to plot the value > (40, 1.4975e-09), for example, (on a semilog plot), the point appears > to end up at (40, 1e(1.4975e-09)). Do I really need to take the log of > all of my data points before plotting, or is this a bug? > > Cavendish > > **************************************************************************** > * Cavendish McKay cm...@ga... * > * * > * You're in trouble when you find it's hard for you to smile * > * A simple song might make it better for a little while. * > * ---Sly and the Family Stone * > **************************************************************************** |