How to understand Seaborn’s heatmap annotation format

There isn’t a clear and quick answer to this at the top of search engine results so I provide simple examples here:

.1e = scientific notation with 1 decimal point (standard form)

.2f = 2 decimal places

.3g = 3 significant figures

.4% = percentage with 4 decimal places

A more detailed explanation on the python string formatter can be found here: (scroll down to table with e, E, f, F, etc. in the Type column)

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