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## matplotlib-users

 [Matplotlib-users] Bugfix for matplotlib.Axes.stem From: Rory Yorke - 2006-05-20 08:22:52 ```Dear list, There is a bug in stem, demonstrated by: from matplotlib.pylab import * stem(arange(10),arange(10),hold=False) show() A simple fix is below; it simply sets hold to True for the duration of the stem method, and restores the hold state once done. This was tested with the very simple plot(arange(10)); stem(arange(10),arange(10),hold=True); show() and plot(arange(10)); stem(arange(10),arange(10),hold=False); show() Regards, Rory Index: axes.py =================================================================== --- axes.py (revision 2406) +++ axes.py (working copy) @@ -2509,7 +2509,10 @@ http://www.mathworks.com/access/helpdesk/help/techdoc/ref/stem.html for details and examples/stem_plot.py for a demo. """ + remember_hold=self._hold if not self._hold: self.cla() + self.hold(True) + markerline, = self.plot(x, y, markerfmt) stemlines = [] @@ -2518,6 +2521,9 @@ stemlines.append(l) baseline, = self.plot([amin(x), amax(x)], [0,0], basefmt) + + self.hold(remember_hold) + return markerline, stemlines, baseline ```
 Re: [Matplotlib-users] Bugfix for matplotlib.Axes.stem From: Eric Firing - 2006-05-20 18:36:51 ```Rory, I applied your patch to svn, revision 2408. Thanks. Eric Rory Yorke wrote: > Dear list, > > There is a bug in stem, demonstrated by: > > > from matplotlib.pylab import * > > stem(arange(10),arange(10),hold=False) > show() > > > A simple fix is below; it simply sets hold to True for the duration of > the stem method, and restores the hold state once done. > > This was tested with the very simple > > > plot(arange(10)); stem(arange(10),arange(10),hold=True); show() > > > and > > > plot(arange(10)); stem(arange(10),arange(10),hold=False); show() > > > Regards, > > Rory > > Index: axes.py > =================================================================== > --- axes.py (revision 2406) > +++ axes.py (working copy) > @@ -2509,7 +2509,10 @@ > http://www.mathworks.com/access/helpdesk/help/techdoc/ref/stem.html > for details and examples/stem_plot.py for a demo. > """ > + remember_hold=self._hold > if not self._hold: self.cla() > + self.hold(True) > + > markerline, = self.plot(x, y, markerfmt) > > stemlines = [] > @@ -2518,6 +2521,9 @@ > stemlines.append(l) > > baseline, = self.plot([amin(x), amax(x)], [0,0], basefmt) > + > + self.hold(remember_hold) > + > return markerline, stemlines, baseline > > > > > > > ------------------------------------------------------- > Using Tomcat but need to do more? Need to support web services, security? > Get stuff done quickly with pre-integrated technology to make your job easier > Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo > http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 > _______________________________________________ > Matplotlib-users mailing list > Matplotlib-users@... > https://lists.sourceforge.net/lists/listinfo/matplotlib-users ```