Getting the error “level sets of factors are different” when running a for loop

Question

I have the following 3 tables:

AggData <- structure(list(Path = c(\"NonBrand\", \"Brand\", \"NonBrand,NonBrand\", 
\"Brand,Brand\", \"NonBrand,NonBrand,No         


        

Answer 1

FinalTable[2,1] and breakVector[1,1] do not have the same levels:

> FinalTable[2,1]
[1] Brand
Levels: Brand NonBrand
> breakVector[1,1]
[1] NonBrand
Levels: NonBrand

This is easily fixed by using

breakVector[,1] <- factor(breakVector[,1], levels=c("Brand", "NonBrand"))

or, more generally

breakVector[,1] <- factor(breakVector[,1], levels=levels(FinalTable[,1]))

Answer 2

Perhaps, it will better compare both variables like a string:

if (as.character(FinalTable [2,1]) == as.character(breakVector[1,1])) {
     FinalTable$attributed_result[2] <- FinalTable$attributed_result[2] + 
     breakVector[1,2] * AggData$conv_count[3];
     break}