Wonderful! thank you! On Fri, Oct 30, 2015 at 4:51 AM, Joshua Klein <[email protected]> wrote:
> My mistake, I thought you were using a DataFrame, not a Series. Instead do > this > > colors = ['r' if row > 0 else 'b' for i, row in meantempanomaly.iteritems()] > meantempanomaly.plot(kind='bar', color=colors) > > > > On Thu, Oct 29, 2015 at 5:43 AM, questions anon <[email protected]> > wrote: > >> Thanks for taking the time to respond >> >> I am receiving the error: >> AttributeError: 'Series' object has no attribute 'iterrow' >> >> I will look into this further. >> thank you >> >> >> On Thu, Oct 29, 2015 at 2:31 PM, Joshua Klein <[email protected]> >> wrote: >> >>> The pandas plot function doesn’t take colors as it does ‘x’ or ‘y’, but >>> it lets you pass color information just as you would with raw matplotlib >>> code, which means you can pass it a sequence of colors which match the >>> length of your sequence of drawn observations. >>> >>> # compute color codes using a ternary expression in a list comprehension >>> over the DataFrame >>> colors = ['r' if row.anomaly > 0 else 'b' for i, row in >>> meantempanomaly.iterrows()] >>> meantempanomaly.plot(kind='bar', color=colors) >>> >>> >>> >>> On Wed, Oct 28, 2015 at 9:54 PM, questions anon < >>> [email protected]> wrote: >>> >>>> I have calculated annual temperature anomaly and I would like to plot >>>> as a bar plot with all values positive make red and all values negative >>>> make blue >>>> >>>> I am using pandas and the time series data in this example are called >>>> 'anomaly' >>>> >>>> mybarplot=anomaly.plot(kind='bar') >>>> >>>> the data look like this: >>>> >>>> time >>>> 2003-01-01 -0.370800 >>>> 2004-01-01 -0.498199 >>>> 2005-01-01 0.246118 >>>> 2006-01-01 -0.313321 >>>> 2007-01-01 0.585050 >>>> 2008-01-01 -0.227976 >>>> 2009-01-01 0.439337 >>>> 2010-01-01 0.135607 >>>> 2011-01-01 0.106105 >>>> 2012-01-01 -0.102002 >>>> Freq: AS-JAN, dtype: float64 >>>> >>>> is there some simple way of writing: >>>> meantempanomaly.plot(kind='bar', anomaly>0:'r', anomaly<0:'b' ) >>>> >>>> Any feedback will be greatly appreciated >>>> >>>> >>>> >>>> ------------------------------------------------------------------------------ >>>> >>>> _______________________________________________ >>>> Matplotlib-users mailing list >>>> [email protected] >>>> https://lists.sourceforge.net/lists/listinfo/matplotlib-users >>>> >>>> >>> >> >
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