search for: 1_at

Dear list, I have a table where first 3 columns are identical if the name in the first column is the same, and the number in N4 is slightly different for all identical names, like this: ------------------------------------------------------------------- 29 Mm.1_at 3 + 93649936 30 Mm.1_at 3 + 93649990 31 Mm.1_at 3 + 93649993 32 Mm.1_at 3 + 93650001 33 Mm.1_at 3 + 93650010 34 Mm.10_at 4 + 147438101 35 Mm.10_at 4 + 147438192 36...