Find rows in a data frame where two columns are equal

Question

I\'d like to select the rows in a data frame where two columns, A and B are equal. I have tried this:

A <- c(0,1,2)
B <- c(2,1.000001,0)
df <- as.da         


        

Answer 1

mteq <- mtcars[mtcars$gear==mtcars$carb, ]