How to obtain the number of elements in a DataFrame in pandas

Overview

To obtain the number of elements in a given pandas DataFrame object, we use the attribute DataFrame.size.

Syntax

DataFrame.size
Syntax for the DataFrame.size attribute

Parameter value

Since it is an attribute, DataFrame.size takes no parameter values.

Return value

The DataFrame.size attribute returns an int representing the number of elements in a DataFrame.

Example

import pandas as pd



# creating a dataframe

df = pd.DataFrame({'AGE':    [ 20,  29],

                   'HEIGHT': [94, 170],

                   'WEIGHT': [80, 115]})

                 

print(df)



# obtaining the number of elements in df

print("No of elements =", df.size)

Explanation

  • Line 1: We import the pandas library.
  • Lines 4–6: We create a DataFrame, df.
  • Line 9: We print df.
  • Line 11: Using the Data.frame.size attribute, we obtain the number of elements in df.

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