[R] writing a function

John Kane jrkrideau at yahoo.ca
Fri Feb 8 19:13:55 CET 2008


It is doing exactly what you ask. You are asking for
the last element in the matrix w[i,j] and the last
element in the vector y[i].

Try return(w) and return(y).  


--- mohamed nur anisah <nuranisah_mohamed at yahoo.com>
wrote:

> Dear lists,
>    
>   I'm in my process of learning of writing a
> function. I tried to write a simple functions of a
> matrix and a vector. Here are the codes:
>    
>   mm<-function(m,n){              #matrix function  
>  
>  w<-matrix(nrow=m, ncol=n)
>  for(i in 1:m){
>   for(j in 1:n){
>    w[i,j]=i+j
>   }
>  }
> return(w[i,j])
> }
>    
>   v<-function(n){          #function of a vector
>  y=vector(length=n)
>   for(i in 1:n){
>    y[i]=i
>   }
>  return(y[i])
> }
>  
>   when i tried called on my matrix function; say
> mm(5,10). what i got is the single value of
> 15..where's is my matrix?? same thing happened to my
> vector function. Please help me figure out these
> problems. Thanks a bunch!!
>    
>   Cheers, 
>   Anisah
>    
>    
>    
> 
> 
> 
>        
> ---------------------------------
> 
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> 
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