Answers for "pandas dataframe access by index"

accessing index of dataframe python

# For accessing dataframe index:
df.index
# For retrieving dataframe index as list:
df.index.tolist()
# for accessing value for an index:
df.at[index_value, column_value]

how to get index of pandas dataframe python

DataFrame.index

retrieve row by index pandas

rowData = dfObj.loc[ 'b' , : ]

how to get index of pandas dataframe python

import pandas as pd

df = pd.DataFrame(
    [[88, 72, 67],
    [23, 78, 62],
    [55, 54, 76]],
    index=[2, 4, 9],
    columns=['a', 'b', 'c'])

index = df.index
print(index)

dataframe select row by index value

In [1]: df = pd.DataFrame(np.random.rand(5,2),index=range(0,10,2),columns=list('AB'))

In [2]: df
Out[2]: 
          A         B
0  1.068932 -0.794307
2 -0.470056  1.192211
4 -0.284561  0.756029
6  1.037563 -0.267820
8 -0.538478 -0.800654

In [5]: df.iloc[[2]]
Out[5]: 
          A         B
4 -0.284561  0.756029

In [6]: df.loc[[2]]
Out[6]: 
          A         B
2 -0.470056  1.192211