Answers for "dropna based on column pandas"

4

drop null rows pandas

df.dropna()
Posted by: Guest on June-15-2020
1

dropna for specific column pandas

df = df[df['EPS'].notna()] #instead of dropping, take another DF with non-na values
Posted by: Guest on June-02-2021
5

dropping nan in pandas dataframe

df.dropna(subset=['name', 'born'])
Posted by: Guest on April-27-2020
3

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
       name        toy       born
0    Alfred        NaN        NaT
1    Batman  Batmobile 1940-04-25
2  Catwoman   Bullwhip        NaT

##Drop the rows where at least one element is missing.
>>> df.dropna()
     name        toy       born
1  Batman  Batmobile 1940-04-25
Posted by: Guest on February-04-2020
0

dropna pandas

>>> df.dropna(subset=['name', 'toy'])
       name        toy       born
1    Batman  Batmobile 1940-04-25
2  Catwoman   Bullwhip        NaT
Posted by: Guest on April-11-2021
0

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        NaT
Posted by: Guest on June-09-2020

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