Dear,

there are two files. Both are range files.
RangeFile1:
ITEM RangeStart1 RangeEnd1
ITEM1 1 100
ITEM2 20 200
ITEM3 2 12

RangeFile2:
ITEM RangeStart2 RangeEnd2
ITEM1 10 20
ITEM1 50 66
ITEM1 88 92
ITEM2 10 30
ITEM3 4 8
ITEM3 10 18

Results:
Range 1 2 3 4 5 6 7 8 9 10 11 12 ...20 21... 50 51...66 67...87 88...91 92
93....100
ITEM1 0 0 0 0 0 0 0 0 0 1 1 1 ... 1 0 ... 1 1... 1 0 ... 0
1... 1 1 0 .... 0

Range 20 21 22 ... 29 30 31 32 ... 200
ITEM2 1 1 1 ... 1 1 0 0 ... 0

Range 2 3 4 5 6 7 8 9 10 11 12
ITEM3 0 0 1 1 1 1 1 0 1 1 1

As you can see, every number from each item range in RangeFile1 will be
given a number of "1" or "0" based on RangeFile2.
how to do it?

Wish your great help again.
Thanks,

pemt