Panda menghitung berapa banyak nilai kurang dari n dalam kolom
df[df.col_name < 2.0 ].count()
Dream Shift
df[df.col_name < 2.0 ].count()In [96]:
df = pd.DataFrame({'a':randn(10), 'b':randn(10), 'c':randn(10)})
df
Out[96]:
a b c
0 -0.849903 0.944912 1.285790
1 -1.038706 1.445381 0.251002
2 0.683135 -0.539052 -0.622439
3 -1.224699 -0.358541 1.361618
4 -0.087021 0.041524 0.151286
5 -0.114031 -0.201018 -0.030050
6 0.001891 1.601687 -0.040442
7 0.024954 -1.839793 0.917328
8 -1.480281 0.079342 -0.405370
9 0.167295 -1.723555 -0.033937
[10 rows x 3 columns]
In [97]:
df[df > 1.0].count()
Out[97]:
a 0
b 2
c 2
dtype: int64