search for: providernum

...wish to further amend the entire data set, but only have PRVDR_NUM == 050108. This is where I'm having trouble. I've tried code like this: newinpatient <- subset(oldinpatient, oldinpatient$PRVDR_NUM == 050108) #OR newinpatient <- oldinpatient[oldinpatient$PRVDR_NUM == 050108, ] #OR providernum <- data.frame(newdim(PRVDR_NUM = c(050108)) newinpatient <- merge(providernum, oldinpatient) With checking "class" at one point, I gathered that R interprets PRVDR_NUM as a factor, not a number .. so I've understood a potential reason why I would have errors (with code above)....