Answers for "how to find the number of unique values in a column in python"

12

return count of unique values pandas

#TO count repetition of each unique values(to find How many times the same-
# unique value is appearing in the data)

item_counts = df["Your_Column"].value_counts()
#Returns Dictionary => {"Value_name" : number_of_appearences}
Posted by: Guest on November-18-2020
1

count unique values pandas

df['hID'].nunique()
5
Posted by: Guest on May-28-2020
0

count unique values in python

words = ['a', 'b', 'c', 'a']
unique_words = set(words)             # == set(['a', 'b', 'c'])
unique_word_count = len(unique_words) # == 3
Posted by: Guest on September-28-2020

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