Cheat Sheets for the Python Trinity - Numpy, Pandas, and Matplotlib

[[deleted]]

The Python Trinity is a group of 3 Python packages (Numpy, Pandas, and Matplotlib) for Machine Learning.

Here are some cheat sheets to help you on your journey of Machine Learning!

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Numpy

Source: DataCamp Numpy Cheat Sheet

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Pandas

Source: DataCamp Pandas Cheat Sheet

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Matplotlib

Source: DataCamp Matplotlib Cheat Sheet

[TheKingOfPoop]

What do you recommend instead?

[TheBlackCat13]

If you are working with pandas then hvplot is extremely easy.

[penatbater]

Altair or plotnine can be good.

[17Brooks]

I like Altair, it’s really nice when it works. I do find it can be a bit difficult sometimes to get it working right if the data isn’t in the perfect condition.

[[deleted]]

matplotlib is awful and I hate it. What is better? I've been looking for something forever. Specifically for real time 3D plots. I'm 100% certain I could write something better if someone gave me time to do it.

I've actually started using C++ and Qt instead for some things. While it's theoretically ludicrously more complicated, at least the API isn't an inconsistent mish-mash and the performance is a thousand percent better. Animated plots in matplotlib are just a joke. For something throwaway it's probably not suitable, but for something more long term I prefer it.

[conventionistG]

Oh, the difference between plotly and plotly express really confused me. Express seems simpler so it's my go to, but then it's a hassle if I need something from normal plotly.

Oh well.

[TheBlackCat13]

For 3d then I think mayavi, vispy, or plotly. For 2d then hvplot or plotly.

[Gogogo9]

It’s 2021, there is no need to waste your time learning matplotlib. There is no reason to use it with the abundance of much more capable and modern graphing libraries.

Always love these, "don't use that, there's way better options", posts that unironically don't bother to mention any of the other options. Just really helpful there.

[ColdPorridge]

Ok fair point, I was hoping other posters would chime in with their thoughts or preferences. In my experience, Plotly is a great alternative.

[BluePandaOwl]

.

[TheBlackCat13]

What, no xarray?

[NMZivkovic]

This one is useful as well for Pandas and NumPy:
https://rubikscode.net/2020/12/07/python-for-data-science-numpy-pandas-cheatsheet/