We started using options to configure the Koalas’ behavior. Now we have the following options:
display.max_rows (#714, #742)
display.max_rows
compute.max_rows (#721, #736)
compute.max_rows
compute.shortcut_limit (#717)
compute.shortcut_limit
compute.ops_on_diff_frames (#725)
compute.ops_on_diff_frames
compute.default_index_type (#723)
compute.default_index_type
plotting.max_rows (#728)
plotting.max_rows
plotting.sample_ratio (#737)
plotting.sample_ratio
We can also see the list and their descriptions in the User Guide of our project docs.
We continue adding plot APIs as follows:
For Series:
plot.area() (#704)
plot.area()
For DataFrame:
plot.line() (#686)
plot.line()
plot.bar() (#695)
plot.bar()
plot.barh() (#698)
plot.barh()
plot.pie() (#703)
plot.pie()
plot.area() (#696)
plot.scatter() (#719)
plot.scatter()
We also continue improving multi-index columns support. We made the following APIs support multi-index columns:
koalas.concat() (#680)
koalas.concat()
koalas.get_dummies() (#695)
koalas.get_dummies()
DataFrame.pivot_table() (#635)
DataFrame.pivot_table()
We added the following new features:
koalas:
read_sql_table() (#741)
read_sql_table()
read_sql_query() (#741)
read_sql_query()
read_sql() (#741)
read_sql()
koalas.DataFrame:
style (#712)
style
Along with the following improvements:
GroupBy.apply should return Koalas DataFrame instead of pandas DataFrame (#731)
GroupBy.apply
Fix rpow and rfloordiv to use proper operators in Series (#735)
rpow
rfloordiv
Fix rpow and rfloordiv to use proper operators in DataFrame (#740)
Add schema inference support at DataFrame.transform (#732)
Add Option class to support type check and value check in options (#739)
Option
Added missing tests (#687, #692, #694, #709, #711, #730, #729, #733, #734)
We renamed two of the default index names from one-by-one and distributed-one-by-one to sequence and distributed-sequence respectively. (#679)
one-by-one
distributed-one-by-one
sequence
distributed-sequence
We moved the configuration for enabling operations on different DataFrames from the environment variable to the option. (#725)
We moved the configuration for the default index from the environment variable to the option. (#723)