message wrote:
Readers,
Could someone please explain how to apply the function 'ifelse' to
change a vector, for various conditions?
testseq<-seq(1:20)
testchange<-ifelse(testseq<=4,'x',testseq)
testchange<-c(ifelse(testseq<=4,'x',testseq),ifelse(testseq>=5,'y',testseq))
The last instruction causes the vector 'testchange' to change
dimensions, when the result wanted is:
testchange
x x x x y y y y y y y y y y y y y y y y
I'm not familiar with whatever language that is (presumably one of the
macro languages supported by LibreOffice?), but I would have thought
your second condition would need to be in what appears to be the "else"
block of the first condition, i.e.:
testchange<-c(ifelse(testseq<=4,'x',ifelse(testseq>=5,'y',testseq)))
or maybe, if the 'c' indicates a condition:
testchange<-c(ifelse(testseq<=4,'x',c(ifelse(testseq>=5,'y',testseq))))
or if 'c' indicates concatenation, you may not want it at all:
testchange<-ifelse(testseq<=4,'x',ifelse(testseq>=5,'y',testseq))
Just guessing though, as I don't recognise the syntax of those lines...
--
Mark.
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