R help - Dec 2009 - Loop doesn't work

Hi everybody,

I have the following problem, the following code seems to run only once for
i and j and for k from one to M.
Doesn't R for increase the argument by itself?

for (i in 1:N){
 for (j in 1:(Tk-1)){
  if((XGrid[i] < Xk[j+1])&(Xk[j] <= XGrid[i])){
        for (k in 1:M){
           if ((RBins[k]<=Rk[j+1])&(Rk[j+1]<RBins[k+1])){
              GR[k] <- +1
           }
        }
  }
 }
}

Thanks a lot

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On Tue, Dec 1, 2009 at 2:01 PM, Trafim <rdapamoga at gmail.com>
wrote:
> Hi everybody,
>
> I have the following problem, the following code seems to run only once for
> i and j and for k from one to M.
> Doesn't R for increase the argument by itself?
>
> for (i in 1:N){
> ?for (j in 1:(Tk-1)){
> ?if((XGrid[i] < Xk[j+1])&(Xk[j] <= XGrid[i])){
> ? ? ? ?for (k in 1:M){
> ? ? ? ? ? if ((RBins[k]<=Rk[j+1])&(Rk[j+1]<RBins[k+1])){
> ? ? ? ? ? ? ?GR[k] <- +1
> ? ? ? ? ? }
> ? ? ? ?}
> ?}
> ?}
> }
>
 Of course it does. Try this, which is something we call a complete
reproducible example:

N=10
for(i in 1:N){
 print(i)
}

How do we know your N isn't 1 and your Tk isn't 2?

Barry