체크인 해결 할머니는 값 python

코드 예제

1
0

할머니는 값이 계산 python

# (1) Count NaN values under a single DataFrame column:
df['column name'].isna().sum()

#(2) Count NaN values under an entire DataFrame:
df.isna().sum().sum()

#(3) Count NaN values across a single DataFrame row:
df.loc[[index value]].isna().sum().sum()
-1
0

는 방법을 확인하는 경우에는 값이 할머니에 python

# If you are doing any conditional operation and you want to check a if
# a single value is Null or not then you can use numpy's isna method.
np.isna(df[col][0])

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