SparkR (version 2.4.6)

createDataFrame: Create a SparkDataFrame

Description

Converts R data.frame or list into SparkDataFrame.

Usage

# S3 method for default
createDataFrame(data, schema = NULL, samplingRatio = 1, numPartitions = NULL)
# S3 method for default
as.DataFrame(data, schema = NULL, samplingRatio = 1, numPartitions = NULL)
as.DataFrame(data, ...)

Arguments

data

a list or data.frame.

schema

a list of column names or named list (StructType), optional.

samplingRatio

Currently not used.

numPartitions

the number of partitions of the SparkDataFrame. Defaults to 1, this is limited by length of the list or number of rows of the data.frame

...

additional argument(s).

Value

A SparkDataFrame.

Examples

# NOT RUN {
sparkR.session()
df1 <- as.DataFrame(iris)
df2 <- as.DataFrame(list(3,4,5,6))
df3 <- createDataFrame(iris)
df4 <- createDataFrame(cars, numPartitions = 2)
# }