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DOC: Improve examples of df.append to better show the ignore_index param #41444

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Merged
merged 7 commits into from
May 17, 2021
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DOC: Improve examples of df.append to better show the ignore_index param #41444

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74111f6
DOC: Add custom index to example in pandas.DataFrame.append #41407
t0asty May 12, 2021
f614e9c
DOC: align comment with PEP8 #41407
t0asty May 12, 2021
0d33219
DOC: change example in pandas.DataFrame.append to non-matching indice…
t0asty May 13, 2021
92c4766
DOC: make first indexes the same to stress non-uniqueness of resultin…
t0asty May 13, 2021
3fddc26
Merge remote-tracking branch 'upstream/master' into 41407-update-exam…
t0asty May 14, 2021
06a04b9
DOC: add Return description #41407
t0asty May 14, 2021
8d8a0b7
DOC: change index to x, y #41407
t0asty May 16, 2021
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17 changes: 9 additions & 8 deletions pandas/core/frame.py
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Original file line number Diff line number Diff line change
Expand Up @@ -8793,6 +8793,7 @@ def append(
Returns
-------
DataFrame
A new DataFrame consisting of the rows of caller and the rows of `other`.

See Also
--------
Expand All @@ -8811,18 +8812,18 @@ def append(

Examples
--------
>>> df = pd.DataFrame([[1, 2], [3, 4]], columns=list('AB'))
>>> df = pd.DataFrame([[1, 2], [3, 4]], columns=list('AB'), index=['x', 'y'])
>>> df
A B
0 1 2
1 3 4
>>> df2 = pd.DataFrame([[5, 6], [7, 8]], columns=list('AB'))
x 1 2
y 3 4
>>> df2 = pd.DataFrame([[5, 6], [7, 8]], columns=list('AB'), index=['x', 'y'])
>>> df.append(df2)
A B
0 1 2
1 3 4
0 5 6
1 7 8
x 1 2
y 3 4
x 5 6
y 7 8

With `ignore_index` set to True:

Expand Down