You need ifelse() instead of if(). On Wed, Mar 7, 2012 at 2:12 PM, Val <valkr...@gmail.com> wrote: > Hi All, > > I have one difficulty in using the conditional if statement > > Assume , > > x <- -1:4 > x > [1] -1 0 1 2 3 4 > > if x is lees than want I want to add 1 and I used the following command > if(x<0) {x=x+1} > > Warning message: > In if (x < 0) { : > the condition has length > 1 and only the first element will be used >> x > [1] 0 1 2 3 4 5 > That command added 1 to each element. > > But I want like this 0 0 1 2 3 4 > > Can anybody help me? > > Thanks > Val
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