A list of column indices that correspond to "type"
Arguments
object
H2OFrame object
coltype
A character string indicating which column type to filter by. This must be one of the following:
"numeric" - Numeric, but not categorical or time
"categorical" - Integer, with a categorical/factor String mapping
"string" - String column
"time" - Long msec since the Unix Epoch - with a variety of display/parse options
"uuid" - UUID
"bad" - No none-NA rows (triple negative! all NAs or zero rows)