Divide data frame by vector, by rows and not by columns [duplicate]

Answer 1

I like David's solution but I would modify it to convert it to a data frame since that keeps the factor instead of getting a matrix.

data.frame(type=df[, 1], mapply("/", df[, -1], div))

#  type  V1   V2    V3
#1    A 0.1 0.01 0.001
#2    B 0.1 0.01 0.001
#3    C 0.1 0.01 0.001

which is what I would like to get.