access column pandas
Report_Card.loc[:,"Grades"]
The first argument ( : ) signifies which rows we would like to index,
and the second argument (Grades) lets us index the column we wantaccess column pandas
Report_Card.loc[:,"Grades"]
The first argument ( : ) signifies which rows we would like to index,
and the second argument (Grades) lets us index the column we wanthow to access pandas column
#columns in Pandas documentation
#import numpy as np
import pandas as pd
a = pd.DataFrame()
b = pd.DataFrame([[1,2,3,4],[5,6,7,8],[2,7,3,23],[3,6,8,23],[23,23,63,12]],columns=['A', 'B', 'C', 'D'])
print(b)add an index column in range dataframe
df = df.loc[df.index.repeat(df['a'])]
df['c'] = df.groupby(level=0).cumcount() + 1
df = df.reset_index(drop=True)
print (df)
a b c
0 1 x 1
1 2 y 1
2 2 y 2
3 3 z 1
4 3 z 2
5 3 z 3Copyright © 2021 Codeinu
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