子集 pandas dataframe 以获得多个连续列上的相同值

Question

I have a pandas data frame of the following type;

id | a | b | c | d | e | g
---------------------------

1  | 0 | 1 | 0 | 1 | 1  | 1

2  | 0 | 0 | 0 | 0 | 1  | 0

3  | 0 | 0 | 0 | 0 | 1  | 1

I want to filter rows which has zero for all columns, a through d . I am aware that this can be achieved by;

data[data['a']==0 & data['b']==0 & data ['c'] ==0 & data ['d'] ==0]

But is there a quicker way using iloc or loc to achieve the same. For example, I tried the following;

data.iloc[:,[1:4]==0]

But it gave me following error message; ValueError: Can only index by location with a [integer, integer slice (START point is INCLUDED, END point is EXCLUDED), listlike of integers, boolean array]

Any alternate feedback/advice, which can replace my original solution is appreciated.thanks

Answer 1

Do you mean:

df[df.iloc[:,1:4].eq(0).all(1)]