get column number in dataframe pandas
# PANDAS: get column number from colomn name
dataframe.columns.get_loc("<col_name>")get column number in dataframe pandas
# PANDAS: get column number from colomn name
dataframe.columns.get_loc("<col_name>")find index of pandas column
In [45]: df = DataFrame({"pear": [1,2,3], "apple": [2,3,4], "orange": [3,4,5]})
In [46]: df.columns
Out[46]: Index([apple, orange, pear], dtype=object)
In [47]: df.columns.get_loc("pear")
Out[47]: 2finding the index of an element in a pandas df
In [48]: a
Out[48]:
c1 c2
0 0 1
1 2 3
2 4 5
3 6 7
4 8 9
In [49]: a.c1[a.c1 == 8].index.tolist()
Out[49]: [4]Copyright © 2021 Codeinu
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