search for: comp215489_c0_seq40

Hi I have a data.frame with 371,718 obs. of 12 variables (see below for an str). My problem is with V1, a Factor w/ 93144 levels, there should actually be 93994 levels. Each entry looks like: comp[number]_c[number]_seq[number] for example comp215489_c0_seq40 R is grouping as though the last number is a decimal for some reason, in other words comp215489_c0_seq40 and comp215489_c0_seq4 are considered to be the same. My problem is that they are not the same so when I group by this factor I am losing 800 levels. Here is an str 'data.frame': 37171...