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nested "for" loops

3 messages · Carl Witthoft, Bert Gunter, Jeff Newmiller

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If in fact this is homework, you will do yourself, your classmates, and 
possibly your teacher if you let them know that, at least in R, almost 
anything you can do in a for() loop can be done easier and faster with 
vectorization.  If you teacher can't comprehend this, get him fired.

a<-c(4,6,3)
b<- c( 9,4,1)
d <- c(4,7,2,8)

winning.value <- max(outer(a,outer(b,d,"*"),"*"))


<quote>
From: R. Michael Weylandt <michael.weylandt_at_gmail.com>
Date: Sat, 05 Nov 2011 10:21:05 -0400
Why do you need to do it with nested for loops? It is of course possible 
- and I hinted how to do it in my first email - but there's no reason as 
far as I can see to do so, particularly as a means of MLE. Sounds 
suspiciously like homework...

Michael
On Nov 4, 2011, at 10:14 PM, nick_pan <nick_pan88_at_yahoo.gr> wrote:
> Thank you , this works but I have to do it with nested for loops...
 >
 > Could you suggest me a way ?
 >