pandas slicing from one column to another

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Perro Fiel answered on January 25, 2021 Popularity 7/10 Helpfulness 5/10

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answer pandas slicing from one column to another

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# slice from 'foo' to 'cat' by every 2nd column
df.loc[:, 'foo':'cat':2]
# foo quz cat

# slice from the beginning to 'bar'
df.loc[:, :'bar']
# foo bar

# slice from 'quz' to the end by 3
df.loc[:, 'quz'::3]
# quz sat

# attempt from 'sat' to 'bar'
df.loc[:, 'sat':'bar']
# no columns returned

# slice from 'sat' to 'bar'
df.loc[:, 'sat':'bar':-1]
sat cat ant quz bar

# slice notation is syntatic sugar for the slice function
# slice from 'quz' to the end by 2 with slice function
df.loc[:, slice('quz',None, 2)]
# quz cat dat

# select specific columns with a list
# select columns foo, bar and dat
df.loc[:, ['foo','bar','dat']]
# foo bar dat

Popularity 7/10 Helpfulness 5/10 Language python

Source: stackoverflow.com

Tags: pandas python

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Perro Fiel

Contributed on Jan 25 2021

Perro Fiel

0 Answers Avg Quality 2/10

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