我如何只查看熊猫数据框中的某些行？

Question

I want to only look at the information of rows that correspond with 'U' and 'L' and 'R' under the category 'LU'. What exactly do I have to write to grab that specific data?

PTYPE   LU
1       E
2       U
3       R
4       L
5       R

test = data[data['LU'] == 'U' | 'L' | 'R' ]

I thought it might be the following statement above, but I got an error. 'U' 'L' and 'R' are also not integers.

Answer 1

method 1
query

data.query('LU in ("U", "L", "R")')

method 2
isin

data[data.LU.isin(list('ULR'))]

both result in