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

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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)
Implementing the DataFrame.size attribute

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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