Getting the minimum of the rows in a data frame

Question

I am working with a dataframe that has 65 variables in it. The first variable catalogs a person, and the next 64 variables indicate the geographic distance that person is fr

Answer 1

I'd approach this with apply but transform or other approach could work.

#fake data set
ID=LETTERS[1:5], distance=matrixsample(
DF <- as.data.frame(matrix(sample(1:100, rep=T, 100), 5, 20))
DF <- data.frame(ID=LETTERS[1:5], DF)

#solution
DF$newvar <- apply(DF[,-1], 1, min)