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public interface GroupedDataFrame<T extends Object, G extends Object>
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Nested Class Summary
Nested Classes Modifier and Type Class Description public final class
GroupedDataFrame.Entry
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Method Summary
Modifier and Type Method Description abstract DataFrame<T>
plain()
DataFrame<G>
ungroup()
DataFrame<T>
get(Object values)
abstract DataFrame<T>
get(List<Object> key)
abstract <R extends Any> GroupedDataFrame<T, R>
mapGroups(Function2<DataFrame<G>, DataFrame<G>, DataFrame<R>> transform)
abstract FrameColumn<G>
getGroups()
abstract DataFrame<T>
getKeys()
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