merge two columns pandas
df["period"] = df["Year"] + df["quarter"]merge two columns pandas
df["period"] = df["Year"] + df["quarter"]df multiple columns into one column
df.stack().reset_index()
level_0 level_1 0
0 0 Column 1 A
1 0 Column 2 E
2 1 Column 1 B
3 1 Column 2 F
4 2 Column 1 C
5 2 Column 2 G
6 3 Column 1 D
7 3 Column 2 HCopyright © 2021 Codeinu
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