mobile = pd.DataFrame({'PattLen':[1,1,2,6,6,7,7,7,7,8]})
print (mobile)
PattLen
0 1
1 1
2 2
3 6
4 6
5 7
6 7
7 7
8 7
9 8
print (mobile.PattLen.value_counts())
7 4
6 2
1 2
8 1
2 1
Name: PattLen, dtype: int64
mt = mobile.PattLen.value_counts().sort_index()
print (mt)
1 2
2 1
6 2
7 4
8 1
Name: PattLen, dtype: int64