| count,GroupedData-method {SparkR} | R Documentation | 
Count the number of rows for each group. The resulting SparkDataFrame will also contain the grouping columns.
## S4 method for signature 'GroupedData' count(x)
x | 
 a GroupedData  | 
a SparkDataFrame
count since 1.4.0
## Not run: 
##D   count(groupBy(df, "name"))
## End(Not run)