Hey everybody,
I have a problem with the combination of the commands outer() and predict(). I want to visualize the solutions of a regression modell in a matrix. Therefore I want to use the command predict for a linear modell as the function inside the command outer. I've made a small example:
x = 1:10
y = 11:20
z = rnorm(10)
lm.1 = lm(z ~ x*y)
mat = outer(x,y, predict, lm.1)
That didn't work, but I don't understand why? Isn't it possible to combine these two commands? I hope my intention becomes clear.
I'm looking forward for any ideas or hints, that might help me.
I wish everybody a nice weekend.
Best regards
Etienne
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Using outer with function predict
2 messages · Etienne Stockhausen, Henrique Dallazuanna
Try this: outer(x, y, FUN = function(x, y)predict(lm.1, data.frame(x, y)))
On Fri, Jan 8, 2010 at 5:49 PM, Etienne Stockhausen <einohr2002 at web.de> wrote:
Hey everybody, I have a problem with the combination of the commands outer() and predict(). I want to visualize the solutions of a regression modell in a matrix. Therefore I want to use the command predict for a linear modell as the function inside the command outer. I've made a small example: ? ? ? ? ?x = 1:10 ? ? ? ? ?y = 11:20 ? ? ? ? ?z = rnorm(10) ? ? ? ? ?lm.1 = lm(z ~ x*y) ? ? ? ? ?mat = outer(x,y, predict, lm.1) That didn't work, but I don't understand why? Isn't it possible to combine these two commands? I hope my intention becomes clear. I'm looking forward for any ideas or hints, that might help me. I wish everybody a nice weekend. Best regards Etienne
___________________________________________________________ Preisknaller: WEB.DE DSL Flatrate f?r nur 16,99 Euro/mtl.! http://produkte.web.de/go/02/ ______________________________________________ R-help at r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
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