Hi there, I've got a program that generates a bunch of plots with logarithmic charts. Matplotlib handles them great, but it seems to by default label the y axis ticks 10^0, 10^1, 10^2 etc. Is there an way to make it spell out these numbers instead (ie 1, 10, 100 etc)? I guess I could make custom ticks for every one, but the graph is not always the same and if it could do it automatically it would be much better. Thanks a lot, Alex -- View this message in context: http://old.nabble.com/Not-using-exponents-on-y-axis-of-log-graphs-tp28155571p28155571.html Sent from the matplotlib - users mailing list archive at Nabble.com.
On Tue, Apr 6, 2010 at 1:16 PM, Alex S <sch...@gm...> wrote:
> I've got a program that generates a bunch of plots with logarithmic charts.
> Matplotlib handles them great, but it seems to by default label the y axis
> ticks 10^0, 10^1, 10^2 etc. Is there an way to make it spell out these
> numbers instead (ie 1, 10, 100 etc)? I guess I could make custom ticks for
> every one, but the graph is not always the same and if it could do it
> automatically it would be much better.
Make a custom tick formatter:
form = plt.FormatStrFormatter('%d')
plt.gca().yaxis.set_major_formatter(form)
Ryan
--
Ryan May
Graduate Research Assistant
School of Meteorology
University of Oklahoma
Ah thank you very much, that works fine except for decimals... (.1, .01, .001 etc all show as 0). Is there a way to show these as well (preferably without showing all the rest of the numbers as 1.000, 10.000, 100.000)? Sorry if this is a very newbie question... I don't know what symbol does what on the string formatter, is there a web site somewhere that lays it all out? As per usual, http://matplotlib.sourceforge.net/api/ticker_api.html the manual has just confused me... -- View this message in context: http://old.nabble.com/Not-using-exponents-on-y-axis-of-log-graphs-tp28155571p28156608.html Sent from the matplotlib - users mailing list archive at Nabble.com.
Thanks again to Mike who explained my problems off list. For other people trying to do something similar, http://docs.python.org/library/stdtypes.html#string-formatting here is the page describing python string formats, and the format i was looking for to show decimals was '%g' (rather than '%d' which was for integers and so truncated decimals). Thanks guys, Alex Alex S wrote: > > Ah thank you very much, that works fine except for decimals... (.1, .01, > .001 etc all show as 0). Is there a way to show these as well (preferably > without showing all the rest of the numbers as 1.000, 10.000, 100.000)? > Sorry if this is a very newbie question... I don't know what symbol does > what on the string formatter, is there a web site somewhere that lays it > all out? As per usual, > http://matplotlib.sourceforge.net/api/ticker_api.html the manual has just > confused me... > -- View this message in context: http://old.nabble.com/Not-using-exponents-on-y-axis-of-log-graphs-tp28155571p28156753.html Sent from the matplotlib - users mailing list archive at Nabble.com.