| show {SparkR} | R Documentation |
Print class and type information of a Spark object.
## S4 method for signature 'Column' show(object) ## S4 method for signature 'GroupedData' show(object) ## S4 method for signature 'SparkDataFrame' show(object) ## S4 method for signature 'WindowSpec' show(object) ## S4 method for signature 'StreamingQuery' show(object)
object |
a Spark object. Can be a SparkDataFrame, Column, GroupedData, WindowSpec. |
show(Column) since 1.4.0
show(GroupedData) since 1.4.0
show(SparkDataFrame) since 1.4.0
show(WindowSpec) since 2.0.0
show(StreamingQuery) since 2.2.0
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, except,
explain, filter,
first, gapplyCollect,
gapply, getNumPartitions,
group_by, head,
hint, histogram,
insertInto, intersect,
isLocal, isStreaming,
join, limit,
localCheckpoint, merge,
mutate, ncol,
nrow, persist,
printSchema, randomSplit,
rbind, registerTempTable,
rename, repartition,
rollup, sample,
saveAsTable, schema,
selectExpr, select,
showDF, storageLevel,
str, subset,
summary, take,
toJSON, unionByName,
union, unpersist,
withColumn, withWatermark,
with, write.df,
write.jdbc, write.json,
write.orc, write.parquet,
write.stream, write.text
## Not run:
##D sparkR.session()
##D path <- "path/to/file.json"
##D df <- read.json(path)
##D show(df)
## End(Not run)