SparkR (version 2.1.2)

str: Compactly display the structure of a dataset

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 SparkDataFrame
str(object)

Arguments

object

a SparkDataFrame

See Also

Other SparkDataFrame functions: SparkDataFrame-class, agg, arrange, as.data.frame, attach, cache, coalesce, collect, colnames, coltypes, createOrReplaceTempView, crossJoin, dapplyCollect, dapply, describe, dim, distinct, dropDuplicates, dropna, drop, dtypes, except, explain, filter, first, gapplyCollect, gapply, getNumPartitions, group_by, head, histogram, insertInto, intersect, isLocal, join, limit, merge, mutate, ncol, nrow, persist, printSchema, randomSplit, rbind, registerTempTable, rename, repartition, sample, saveAsTable, schema, selectExpr, select, showDF, show, storageLevel, subset, take, union, unpersist, withColumn, with, write.df, write.jdbc, write.json, write.orc, write.parquet, write.text

Examples

# NOT RUN {
# Create a SparkDataFrame from the Iris dataset
irisDF <- createDataFrame(iris)

# Show the structure of the SparkDataFrame
str(irisDF)
# }