str: Compactly display the structure of a dataset

In SparkR: R Front End for 'Apache Spark'

Description

Display the structure of a SparkDataFrame, including column names, column types, as well as a a small sample of rows.

Usage

## S4 method for signature 'SparkDataFrame'
str(object)

Arguments

object

a SparkDataFrame

Note

str since 1.6.1

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(), subset(), summary(), take(), toJSON(), unionAll(), unionByName(), union(), unpersist(), withColumn(), withWatermark(), with(), write.df(), write.jdbc(), write.json(), write.orc(), write.parquet(), write.stream(), write.text()

Examples

## Not run: 
# Create a SparkDataFrame from the Iris dataset
irisDF <- createDataFrame(iris)

# Show the structure of the SparkDataFrame
str(irisDF)

## End(Not run)

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