Answers for "filter dataframe column"

pandas column filter

filter = df['column']!= 0
df = df[filter]

pandas filter rows by value

# does year equals to 2002?
# is_2002 is a boolean variable with True or False in it
>is_2002 =  gapminder['year']==2002
>print(is_2002.head())
0    False
1    False
2    False
3    False
4    False
# filter rows for year 2002 using  the boolean variable
>gapminder_2002 = gapminder[is_2002]
>print(gapminder_2002.shape)
(142, 6)

pandas filter

df[(df['year'] > 2012) & (df['reports'] < 30)]

pandas filter

#To select rows whose column value is in list 
years = [1952, 2007]
gapminder.year.isin(years)