Count number of words per row

Question

I\'m trying to create a new column in a dataframe that contains the word count for the respective row. I\'m looking to the total number of words, not frequencies of each di

Answer 1

This is one way using pd.Series.str.split and pd.Series.map:

df['word_count'] = df['col'].str.split().map(len)

The above assumes that df['col'] is a series of strings.

Example:

df = pd.DataFrame({'col': ['This is an example', 'This is another', 'A third']})

df['word_count'] = df['col'].str.split().map(len)

print(df)

#                   col  word_count
# 0  This is an example           4
# 1     This is another           3
# 2             A third           2