An (Optional) A single integer. If positive, number of rows in x to return. If negative, all but the n first/last number of rows in x.
Anything bigger than 20 rows will require asking the server (first 20 rows are cached on the client).
Examples
if(FALSE){# \dontrun{library()h2o.init()f<-"https://h2o-public-test-data.s3.amazonaws.com/smalldata/iris/iris_train.csv"iris<-h2o.importFile(f)h2o.print(iris["species"], n =15)}# }