Thanks That was just what I was looking for. The bihistogram solution is interesting too, but I think I will to with alpha since I might want to use a log y scale.
Regards Neil On Nov 12, 2007 3:06 PM, Eric Firing <[EMAIL PROTECTED]> wrote: > > Neil M wrote: > > Hello, > > > > Is it possible to plot two histograms on the same axis without having > > the bars on top of each other. > > > > I'm trying to determine how similar a distribution of activity is > > between a large data set and a small subset. > > > > I have 2 million records with a last activity date. I can plot both > > the sample and the full population on a normalized histogram, and in > > different colours but the later plot covers smaller values of the > > earlier one. > > > > Thanks > > Neil > > Neil, > > I can think of two alternatives. If one of the two distributions has > all values higher than the other, so you want it to be behind, then you > can use the zorder property of the patches. From your description it > sounds like this is the case. If not, however, you can set the alpha > property so that both sets of bars are semi-transparent. > > Both of these properties can be passed in as kwargs to the hist() function: > > hist(randn(200), edgecolor='r', zorder=5, alpha=0.5) > hist(randn(500), edgecolor='g', zorder=4, alpha=0.5) > > Eric > > > > > ------------------------------------------------------------------------- > > This SF.net email is sponsored by: Splunk Inc. > > Still grepping through log files to find problems? Stop. > > Now Search log events and configuration files using AJAX and a browser. > > Download your FREE copy of Splunk now >> http://get.splunk.com/ > > > _______________________________________________ > > Matplotlib-users mailing list > > Matplotlib-users@lists.sourceforge.net > > https://lists.sourceforge.net/lists/listinfo/matplotlib-users > > ------------------------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now >> http://get.splunk.com/ _______________________________________________ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
