Comparing multiple columns in different data sets to find values within range R

Question

I have two datasets. One called domain (d) which as general information about a gene and table called mutation (m). Both tables have similar column called Gene.name, which I

Answer 1

A merge and subset should get you there (though I think your intended result doesn't match your description of what you want):

result <- merge(d,m,by="Gene.name")
result[with(result,Mutation >= Start & Mutation <= End),]

#  Gene.name                Domain Start End Mutation
#1     ABCF1 low_complexity_region     2  13       10
#4     ABCF1                   AAA   328 532      335
#6        F2    coiled_coil_region   499 558      499