as.data.frame: Download data from a SparkDataFrame into a R data.frame

Description Usage Arguments Value Note See Also Examples

Description

This function downloads the contents of a SparkDataFrame into an R's data.frame. Since data.frames are held in memory, ensure that you have enough memory in your system to accommodate the contents.

Usage

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as.data.frame(x, row.names = NULL, optional = FALSE, ...)

## S4 method for signature 'SparkDataFrame'
as.data.frame(x, row.names = NULL,
  optional = FALSE, ...)

Arguments

x

a SparkDataFrame.

row.names

NULL or a character vector giving the row names for the data frame.

optional

If TRUE, converting column names is optional.

...

additional arguments to pass to base::as.data.frame.

Value

A data.frame.

Note

as.data.frame since 1.6.0

See Also

Other SparkDataFrame functions: SparkDataFrame-class, agg, alias, arrange, attach,SparkDataFrame-method, broadcast, cache, checkpoint, coalesce, collect, colnames, coltypes, createOrReplaceTempView, crossJoin, cube, dapplyCollect, dapply, describe, dim, distinct, dropDuplicates, dropna, drop, dtypes, exceptAll, except, explain, filter, first, gapplyCollect, gapply, getNumPartitions, group_by, head, hint, histogram, insertInto, intersectAll, intersect, isLocal, isStreaming, join, limit, localCheckpoint, merge, mutate, ncol, nrow, persist, printSchema, randomSplit, rbind, rename, repartitionByRange, repartition, rollup, sample, saveAsTable, schema, selectExpr, select, showDF, show, storageLevel, str, subset, summary, take, toJSON, unionByName, union, unpersist, withColumn, withWatermark, with, write.df, write.jdbc, write.json, write.orc, write.parquet, write.stream, write.text

Examples

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## Not run: 
irisDF <- createDataFrame(iris)
df <- as.data.frame(irisDF[irisDF$Species == "setosa", ])

## End(Not run)

SparkR documentation built on Sept. 2, 2019, 5:05 p.m.