pandas transform count where condition
# use lambda function within your transform.
# here i am checking if key3 is greater than 0
df.groupby(['key1', 'key2'])['key3'].transform(lambda x: x[x > 0].count())pandas transform count where condition
# use lambda function within your transform.
# here i am checking if key3 is greater than 0
df.groupby(['key1', 'key2'])['key3'].transform(lambda x: x[x > 0].count())Copyright © 2021 Codeinu
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