R: S4 class that represents a DataFrame

DataFrame-class {SparkR}

R Documentation

S4 class that represents a DataFrame

Description

DataFrames can be created using functions like jsonFile, table etc.

Compute aggregates by specifying a list of columns

Usage

dataFrame(sdf, isCached = FALSE)

## S4 method for signature 'DataFrame'
agg(x, ...)

## S4 method for signature 'DataFrame'
summarize(x, ...)

groupBy(x, ...)

toRDD(x)

groupedData(sgd)

Arguments

`sdf`	A Java object reference to the backing Scala DataFrame
`isCached`	TRUE if the dataFrame is cached
`x`	a DataFrame
`env`	An R environment that stores bookkeeping states of the DataFrame
`sdf`	A Java object reference to the backing Scala DataFrame

S4 class that represents a DataFrame

Description

Usage

Arguments

See Also