### Re: [Matplotlib-users] plotting numbers on axes in scientific notation

Fabrice Silva wrote: Le mardi 09 septembre 2008 à 08:26 -0400, Michael Droettboom a écrit : You can use def ticklabel_format(self, **kwargs): It did not figure how to use that! I've tried in ipython : import numpy as np t = np.linspace(0,1,1024) f = np.sin(10*t)/1e5 plot(t,f) ax = gca() ax.ticklabel_format(style='sci', axis='y') ax.yaxis.major.formatter.set_powerlimits((0,0)) show() but the yticklabels are still in plain notation... I've googled, but I still can not find where I am wrong! Yes, this is confusing. The problem is that the scientific style uses scientific notation only for sufficiently large or small numbers, with thresholds determined by the powerlimits parameter. The line I added above will force scientific notation. The ticklabel_format method needs another kwarg to enable setting the powerlimits. Eric - This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100url=/ ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users

### Re: [Matplotlib-users] plotting numbers on axes in scientific notation

Eric Firing wrote: Fabrice Silva wrote: Le mardi 09 septembre 2008 à 08:26 -0400, Michael Droettboom a écrit : You can use def ticklabel_format(self, **kwargs): It did not figure how to use that! I've tried in ipython : import numpy as np t = np.linspace(0,1,1024) f = np.sin(10*t)/1e5 plot(t,f) ax = gca() ax.ticklabel_format(style='sci', axis='y') ax.yaxis.major.formatter.set_powerlimits((0,0)) show() but the yticklabels are still in plain notation... I've googled, but I still can not find where I am wrong! Yes, this is confusing. The problem is that the scientific style uses scientific notation only for sufficiently large or small numbers, with thresholds determined by the powerlimits parameter. The line I added above will force scientific notation. The ticklabel_format method needs another kwarg to enable setting the powerlimits. Done in svn 6148. I called the kwarg 'scilimits' to emphasize that it works with the 'sci' style; if there are comments to the effect that I should have called it 'powerlimits' for consistency with the corresponding ScalarFormatter method, I can change it. With the change in svn, instead of the line I added above, your call to ticklabel_format would be: ax.ticklabel_format(style='sci', scilimits=(0,0), axis='y') Eric - This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100url=/ ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users

### [Matplotlib-users] plotting numbers on axes in scientific notation

Hi, How can I plot numbers on the x and y axes in scientific notation? I have very large values on the y axis which I'd like to show as 1e9 and not 1 followed by 9 zeros. - This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100url=/___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users