[R] Assign value to new variable based on conditions on other variables

[aajit75]

I have got solution using within function as below

dd$Seg <- 1
dd <- within(dd, Seg[x2> 0 & x3> 200] <- 1) 
dd <- within(dd, Seg[x2> 100 & x3> 300] <- 2) 
dd <- within(dd, Seg[x2> 200 & x3> 400] <- 3) 
dd <- within(dd, Seg[x2> 300 & x3> 500] <- 4)

I sthere any better way of doing it!!

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