'TRUE' if intervals set is big, otherwise 'FALSE'.
Arguments
intervals.set
name of an intervals set
Details
This function tests whether 'intervals.set' is a big intervals set.
Intervals set is big if it is stored in big intervals set format and given
the current limits it cannot be fully loaded into memory.
Memory limit is controlled by 'gmax.data.size' option (see:
'getOption("gmax.data.size")').