If I have a pandas data frame like this:
Col A Col B
0 9 2
1 7 1
2 6 9
3 3 3
4 1 4
5 6 3
6 7 2
7 9 1
How do I remove all rows after the minimum value is reached in Column A (which is 1) such that I get a pandas data frame like this:
Col A Col B
0 9 2
1 7 1
2 6 9
3 3 3
4 1 4
df[df.index<=df['Col A'].idxmin()]
Try the below code, Hope it will help.
df = pd.DataFrame({'Col A': [9,7,6,3,1,6,7,9],'Col B':[2,1,9,3,4,3,2,1]})
df_list = df['Col A'].tolist()
index = df_list.index(min(df_list))
df.iloc[:index+1]
Ouput will be :
Col A Col B
0 9 2
1 7 1
2 6 9
3 3 3
4 1 4
使用idxmin()
df = df.loc[:df['Col A'].idxmin()]
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