take: Take the first NUM rows of a SparkDataFrame and return the...

Description Usage Arguments Note See Also Examples

Description

Take the first NUM rows of a SparkDataFrame and return the results as a R data.frame

Usage

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take(x, num)

## S4 method for signature 'SparkDataFrame,numeric'
take(x, num)

Arguments

x

a SparkDataFrame.

num

number of rows to take.

Note

take since 1.4.0

See Also

Other SparkDataFrame functions: SparkDataFrame-class, agg(), alias(), arrange(), as.data.frame(), 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(), toJSON(), unionAll(), 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: 
sparkR.session()
path <- "path/to/file.json"
df <- read.json(path)
take(df, 2)

## End(Not run)

SparkR documentation built on June 3, 2021, 5:05 p.m.