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[英]Return rows in pandas dataframe where tuple in column contains a certain value
[英]how to return a dataframe if one of rows in column match certain value
我有 dataframe,如果其中一個值很高,我希望它返回給我 dataframe
df
a b c d e f
high low high low high low
low low low low low high
low low low low low low
如果我們在列中過濾它,我知道該怎么做
df[df[a]=="high"]
如果我嘗試循環該過程但它不起作用
for column in df.columns:
df_high=df[df[column]=="high"]
df_high 返回 0 行。 預期結果:
a b c d e f
high low high low high low
low low low low low high
Use, DataFrame.eq
along with DataFrame.any
along axis=1
to create a boolean mask then use this mask
to filter out the rows in dataframe:
mask = df.eq('high').any(axis=1)
df1 = df[mask]
結果:
# print(df1)
a b c d e f
0 high low high low high low
1 low low low low low high
我會這樣做
df = pd.DataFrame({'a':['high', 'low', 'low'], 'b':['low', 'high', 'low']})
df.loc[(df=='high').sum(axis=1) > 0]
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