Lookup formula finding incorrect results

**burnsie** · 11-03-2009, 08:27 AM

Hello.

I am using a Lookup formal to group ages as follows

If I type in an age in A1, in A2 I want an age group to appear

the groups are
20-24
25-29
30-34
35-39
40-44
45-49
50-54
55-59
60-65

can anyone see what I’ve done wrong

so far, if I type in an age then it normally enters the group ABOVE what I want

i.e. if I enter “24” then it put the group “25-29”. if I enter “42” it puts “45-49” and so on.

Help lease

=LOOKUP($A1,{0,16,20,25,30,35,40,45,50,55,60},{"<16","20-24","25-29","30-34","35-39","40-44","45-49","50-54","55-59","60+"})

**DonkeyOte** · 11-03-2009, 08:29 AM

Check the number of items in both lookup_vector and result_vector... one band is missing an output.

**StephenR** · 11-03-2009, 08:32 AM

Your categories are a bit skewiff. Try this:

=LOOKUP($A1,{0,20,25,30,35,40,45,50,55,60},{"<20","20-24","25-29","30-34","35-39","40-44","45-49","50-54","55-59","60+"})