On Mar 18, 2011, at 4:00 PM, armstrwa wrote:

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That would certainly help, haha.  Thank you for catching that error. 
Do you happen to know what exactly '~' means in R?

?formula

It separates the left hand side of a formula from the right hand side. Generally that means that the left hand side is taken as some sort of "Y" or dependent varialbe and the RHS as the predictors, but formulas can be used by funstions that do not have tha t interpretation. Your use as date ~ q meant that you were predicting 'date' from values of 'q'.

--
David.




Thanks again.

Billy

nblarson [via R] wrote:
Flip date and q in your formula, you've got them
backwards from what you've said you're trying to model.




   armstrwa wrote:
   Yeah, I did look at the
help(loess) page, but I wasn't really sure what to do with that.  I was
inputting it as:


> test<-loess(date ~ q,data.frame(date,q),span=0.5)


So I guess I'm inputting the formula wrong then?  But from looking at
the help(formula) page, I still wasn't sure what it's looking for.


Thanks.


Billy







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William Armstrong
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