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edu
2010 Aug 03
3
how to do a IF ELSE in a matrix format
...rs
I am new to R and this question may has been asked many times or a very old
one.?I have checked
the archive but found nothing (maybe I used?the wrong key words).?any advise is
appreciated
the question is:
I try to replace a col vector with some other values, see
edu<-matrix(0,1000,2)
edu1<-runif(1000,0,1)
edu[,1]<-edu1
the colum ?vector?edu[,1]? would?have value between 0 and 1. if I want to
replace the value of edu[,2]
to 1 if edu[,1] less than 0.5, how to do it in the form of matrix but not?under
a?loop structure?
I have tried:
if (edu[,1]>=0.5) edu[,2]=1
there i...