[R] problem in my code

W. Yamamoto wataru at crayon.se.uec.ac.jp
Mon Jul 10 06:22:35 CEST 2006


Hi,

How about replacing all "<<-" with "<-"?  That error occured in
>                 membership[i] <<- 1
this line and this code stopped before
> cbind(x,y,membership)
this line.

Hope this may help you.
---
W. Yamamoto

> Dear R-users
>
> I wrote a small program for assigning a membership
>
> Here is my script
>
> sample.size <- 60
>
> x <- rnorm(sample.size, 0, 1)
> y <- rnorm(sample.size, 0, 1)
>
> x.mean <- mean(x)
> y.mean <- mean(y)
> membership <- numeric(sample.size)
>
> for (i in 1:sample.size)
>     {
>         if ((x[i] < x.mean) && (y[i] < y.mean))
>             {
>                 membership[i] <<- 1
>             } else {
>                         if ((x[i] > x.mean) && (y[i] < y.mean))
>                             {
>                                 membership[i] <<- 2
>                             } else {
>                                         if ((x[i] > x.mean) && (y[i] >
> y.mean))
>                                             {
>                                                 membership[i] <<- 3
>                                             } else
>                                                 {
>                                                     membership[i] <<- 4
>                                                 }
>                                    }
>
>                     }
>
>     }
> cbind(x,y,membership)
>
> There is an error message
> "Error: object "membership" not found"
> I can't figure it out.
>
> Any help or advice on improvement for this code will be appreciated.
> I konw this code is not well written at all.
>
> Thank you
>
> Taka
>
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