dropping nan in pandas dataframe
df.dropna(subset=['name', 'born'])dropping nan in pandas dataframe
df.dropna(subset=['name', 'born']).dropna() python
>>> df.dropna(how='all')dropna pandas
>>> df.dropna(axis='columns')
name
0 Alfred
1 Batman
2 Catwomandropna pandas
>>> df.dropna(inplace=True)
>>> df
name toy born
1 Batman Batmobile 1940-04-25dropna threshold
#dropping columns having more than 50% missing values(1994/2==1000)
df=df.dropna(thresh=1000,axis=1)threshold meaning in pandas dropna
>>>df = pd.DataFrame({"name": ['Alfred', 'Batman', 'Catwoman'],
"toy": [np.nan, 'Batmobile', 'Bullwhip'],
"born": [pd.NaT, pd.Timestamp("1940-04-25"),
pd.NaT]})
df.dropna(thresh=2)
name toy born
1 Batman Batmobile 1940-04-25
2 Catwoman Bullwhip NaTCopyright © 2021 Codeinu
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