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Pandas: merge, pivot & reshape — practice questions · JobPrax

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All Pandas topics

Pandas

Pandas: merge, pivot & reshape

Join DataFrames and change their shape.

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Start the first question

1Inner mergeBasic
2Left mergeBasic
3Concatenate rowsBasic
4Select after mergeBasic
5Customers without orders InterviewBasic
6Merge with different key namesIntermediate
7Merge indicatorIntermediate
8Pivot tableIntermediate
9Melt wide to longIntermediate
10CrosstabIntermediate
11Merge then groupIntermediate
12Validate the mergeIntermediate
13UnstackAdvanced
14Self-merge: same-city colleaguesAdvanced
15Merge as of a dateAdvanced
16Pivot with marginsAdvanced
17Wide again with pivotAdvanced
18Anti-join on two keysAdvanced
19Customer summary report InterviewAdvanced
20Month over month tableAdvanced

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Pandas topics

Pandas: first look at a dataset0/20
Pandas: selecting & filtering0/20
Pandas: groupby & aggregation0/20
Pandas: merge, pivot & reshape0/20
Pandas: cleaning data0/20
Pandas: dates & time series0/20
Pandas: apply, windows & analysis tasks0/20
Pandas: practice test 10/10
Pandas: practice test 20/10