jumlah variabel kueri panda
>>> index = pd.Index([3, 1, 2, 3, 4, np.nan])
>>> index.value_counts()
3.0 2
2.0 1
4.0 1
1.0 1
dtype: int64
Lonely Lark
>>> index = pd.Index([3, 1, 2, 3, 4, np.nan])
>>> index.value_counts()
3.0 2
2.0 1
4.0 1
1.0 1
dtype: int64