concat dataframe from list of dataframe
import pandas as pd df = pd.concat(list_of_dataframes)
concat dataframe from list of dataframe
import pandas as pd df = pd.concat(list_of_dataframes)
Joins with another DataFrame
# Joins with another DataFrame df.join(df2, df.name == df2.name, 'outer').select( df.name, df2.height).collect() # [Row(name=None, height=80), Row(name=u'Bob', height=85), Row( # name=u'Alice', height=None)] df.join(df2, 'name', 'outer').select('name', 'height').collect() # [Row(name=u'Tom', height=80), Row(name=u'Bob', height=85), Row( # name=u'Alice', height=None)] cond = [df.name == df3.name, df.age == df3.age] df.join(df3, cond, 'outer').select(df.name, df3.age).collect() # [Row(name=u'Alice', age=2), Row(name=u'Bob', age=5)] df.join(df2, 'name').select(df.name, df2.height).collect() # Row(name=u'Bob', height=85)] df.join(df4, ['name', 'age']).select(df.name, df.age).collect() # [Row(name=u'Bob', age=5)]
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