Inverting color schemes or defining specific hues within a matplotlib/pandas chart

I have been experimenting with some code snippets from the book Python for Data Analysis and encountered an intriguing challenge. I am curious to know if there is a technique to invert the colors of a colormap, like transitioning from blue to pink in reverse (pink to blue) for the 'cool' color map.

Exploring different colormaps at SciPy.org colormaps

In a sample visual below, I depict baby names using the 'cool' color map, illustrating girls in blue and boys in pink. Is it possible to flip this mapping and display boys in blue and girls in pink?

Answer №1

The link you shared does not provide comprehensive documentation, but it's worth noting that each colormap has a corresponding reversed version which can be accessed by adding "_r" to the name of the original colormap. In your case, the reversed colormap would be named "cool_r".

While this information is alluded to in the code samples (specifically look for the parts with ".endswith("_r")"), it is not explicitly stated in a clear and concise manner.

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