python - count how many unique in a column
df['var_1'].nunique() # How many unque values are present in a variablepython - count how many unique in a column
df['var_1'].nunique() # How many unque values are present in a variablecounting unique values python
df.loc[df['mID']=='A','hID'].agg(['nunique','count','size'])count unique values in python
words = ['a', 'b', 'c', 'a']
unique_words = set(words) # == set(['a', 'b', 'c'])
unique_word_count = len(unique_words) # == 3Copyright © 2021 Codeinu
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