Thank you very much. I myself thought about something similar but I was not so
smart to use outer.
Cheers
Petr
On 15 Mar 2004 at 13:51, Peter Wolf wrote:
> Try:
>
> > x<-rep(FALSE,20); x[c(4,10,15)]<-TRUE
> > x
> [1] FALSE FALSE FALSE TRUE FALSE FALSE FALSE FALSE FALSE TRUE FALSE
> FALS
Try:
> x<-rep(FALSE,20); x[c(4,10,15)]<-TRUE
> x
[1] FALSE FALSE FALSE TRUE FALSE FALSE FALSE FALSE FALSE TRUE FALSE FALSE
[13] FALSE FALSE TRUE FALSE FALSE FALSE FALSE FALSE
> x[outer(which(x),-1:1,"+")]<-T
> x
[1] FALSE FALSE TRUE TRUE TRUE FALSE FALSE FALSE TRUE TRUE TRUE FALSE
[13] FA
Dear all
In automatic dropout evaluation function I construct an index (pointer), which
will be TRUE at "unusual" values. Then I need to expand these TRUE values a
little bit forward and backward.
Example:
having span=5, from vector
idx<-rep(F,10)
idx[4]<-T
> idx
[1] FALSE FALSE FALSE TRUE
