| showDF {SparkR} | R Documentation |
Print the first numRows rows of a SparkDataFrame
showDF(x, ...) ## S4 method for signature 'SparkDataFrame' showDF(x, numRows = 20, truncate = TRUE, vertical = FALSE)
x |
a SparkDataFrame. |
... |
further arguments to be passed to or from other methods. |
numRows |
the number of rows to print. Defaults to 20. |
truncate |
whether truncate long strings. If |
vertical |
whether print output rows vertically (one line per column value). |
showDF since 1.4.0
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, 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, show,
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 showDF(df)
## End(Not run)