[R] problem in R-code

[Boris Steipe]

Your approach does not make sense.

If you initialize a vector as say ...

   BZ <- numeric(5)
... what do you _expect BZ contains?

Also: if you run a loop like you do
for (j in 1:1) {
   print(j)
}
... what do you _expect_ will happen?


B.

On Nov 3, 2015, at 10:43 PM, thanoon younis <thanoon.younis80 at gmail.com> wrote:

> Thank you for your response
> 
> I have a vector of unknown values BZ which is defined already BZ=numeric(N)  and i want to transfer BZ to ordered categorical variable with 4 categories W but when i write this code
> 
>   for(j in 1:1){
>       if(BZ[j] < 0.25){
>         W[j] = 1
>       }else if(BZ[j] >=0.25 & BZ[j] < 0.5){
>         W[j] = 2
>       }else if(BZ[j] >=0.5 & BZ[j] < 0.75){
>         W[j] = 3
>       }else{
>         W[j] = 4
>       }}
> 
> i found the values of W are only 0, but if i change  for(j in 1:N) the values of W will be only 1. how can i solve this problem?
> Regards
> 
> On 4 November 2015 at 06:35, Boris Steipe <boris.steipe at utoronto.ca> wrote:
> Why don't you just multiply by four, round, and add one?
> 
> 
> 
> B.
> On Nov 3, 2015, at 10:02 PM, thanoon younis <thanoon.younis80 at gmail.com> wrote:
> 
> > Dear R-users
> >
> > I have a problem in the code below, the problem is because i want to change
> > the variable BZ which is a vector with 200x1 dimension to the var. W which
> > is categorical variable with same dimension of BZ but with categorical
> > values with 4 categories but i got on only zero values in w why?  any help
> > would be appreciated.
> >
> > N<-200;P<-9                       #Sample size
> > BZ=numeric(N)
> >
> > W<-numeric(N)
> >
> > for (t in 1:1) {
> >  #Generate the data for the simulation study
> >  for (i in 1:N) {
> >
> >    #transform theta to ordered categorical variables
> >
> >
> >    for(j in 1:1){
> >      if(BZ[j] < 0.25){
> >        W[j] = 1
> >      }else if(BZ[j] >=0.25 & BZ[j] < 0.5){
> >        W[j] = 2
> >      }else if(BZ[j] >=0.5 & BZ[j] < 0.75){
> >        W[j] = 3
> >      }else{
> >        W[j] = 4
> >      }}
> >
> >
> >    #Input data set
> >    data<-list(N=200,P=9,Q=W)
> >
> >  }} #end
> >
> > W
> >
> >
> >
> >
> > Regards
> >
> >
> > --
> > Thanoon Y. Thanoon
> > PhD Candidate
> > Department of Mathematical Sciences
> > Faculty of Science
> > University Technology Malaysia, UTM
> > E.Mail: Thanoon.younis80 at gmail.com
> > E.Mail: dawn_prayer80 at yahoo.com
> > Facebook:Thanoon Younis AL-Shakerchy
> > Twitter: Thanoon Alshakerchy
> > H.P:00601127550205
> >
> >       [[alternative HTML version deleted]]
> >
> > ______________________________________________
> > R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see
> > 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.
> 
> 
> 
> 
> -- 
> Thanoon Y. Thanoon
> PhD Candidate 
> Department of Mathematical Sciences 
> Faculty of Science
> University Technology Malaysia, UTM
> E.Mail: Thanoon.younis80 at gmail.com
> E.Mail: dawn_prayer80 at yahoo.com
> Facebook:Thanoon Younis AL-Shakerchy
> Twitter: Thanoon Alshakerchy
> H.P:00601127550205