need suggestion about building formual
I'm not certain what you are asking.
You can build expressions in R as character strings and then execute
them. Example:
expr <- paste("two <-", 1, "+", 1)
eval(parse(text=expr))
two
If this does not answer your question, PLEASE do read the posting
guide, "www.R-project.org/posting-guide.html". It can help increase the
chances of a quick and useful reply.
spencer graves
Simple wrote:
hi, I'm an newbie for R,I want do some fitting in R. I wander if it is possible to write a few of equations but only one formual when fitting Currently,My problem is,in R, is there methods combination a few equations into one formual? For example, y=f1(k); k=f2(t); t=f3(x); although it is certain that the can be equations turn into one formual as y~f(x),but write such a complexity string make me painful. I have searched the web and found out there were only examples with one formual.any suggestion? I hope that I have omit something.
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