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Collects all the elements of a SparkDataFrame and coerces them into an R data.frame.

Usage

collect(x, ...)

# S4 method for class 'SparkDataFrame'
collect(x, stringsAsFactors = FALSE)

Arguments

x

a SparkDataFrame.

...

further arguments to be passed to or from other methods.

stringsAsFactors

(Optional) a logical indicating whether or not string columns should be converted to factors. FALSE by default.

Note

collect since 1.4.0

Examples

if (FALSE) { # \dontrun{
sparkR.session()
path <- "path/to/file.json"
df <- read.json(path)
collected <- collect(df)
class(collected)
firstName <- names(collected)[1]
} # }