count unique elements in list python code example
Example 1: python count number of unique elements in a list
len(set(my_list))
my_list = ['so', 'so', 'so', 'many', 'duplicated', 'words']
len(set(my_list))
--> 4
Example 2: count unique values in python
aa="XXYYYSBAA"
bb=dict(zip(list(aa),[list(aa).count(i) for i in list(aa)]))
print(bb)
Example 3: counting unique values python
df.loc[df['mID']=='A','hID'].agg(['nunique','count','size'])
Example 4: python count unique values in list
len(set(["word1", "word1", "word2", "word3"]))