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Pandas pivot table explained

http://pbpython.com/pandas-pivot-table-explained.html

by dil8 • 12 years ago

63 4 12 years ago

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4

petulla• 12 years ago

What are the advantages over groupby?

chris1610• 12 years ago

I think it ultimately is just a simpler wrapper around groupby once you start trying to do multiple levels of analysis.

mrits• 12 years ago

it seems like "columns" would be analogous to multiple "sum(CASE WHEN 'val' ELSE 0) as col" SQL idioms.

rrrrtttt• 12 years ago

It takes the groups and arranges them as the columns of a table. Whereas groupby allows you to operate on this table in the vertical direction, the full pivot table allows you to also operate on it horizontally.

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