R help - Oct 2006 - Question:shardsplot (package:klaR)

Dear all,


 I have a question on the shardsplot package:klaR(see the below Example).

Plese tell me the meanings of " logstand <- t((t(logcount) / sdlogcount)
*
c(1,2,6,5,5,3))", much more.

Why does this example use "c(1,2,6,5,5,3)" ?

 Examples:



     # Compute clusters and an Eight Directions Arranged Map for the

     # country data. Plotting the result.

     data(countries)

     logcount <- log(countries[,2:7])

     sdlogcount <- apply(logcount, 2, sd)

     logstand <- t((t(logcount) / sdlogcount) * c(1,2,6,5,5,3))

     cclasses <- cutree(hclust(dist(logstand)), k = 6)

     countryEDAM <- EDAM(logstand, classes = cclasses, sa = FALSE,

         iter.max = 10, random = FALSE)

     plot(countryEDAM, vertices = FALSE, label = TRUE, stck = FALSE)




Sincerely yours,
Mikio

	[[alternative HTML version deleted]]

I am forwarding this question to Nils Raabe, the author of shardsplot(). 
Nils?

Uwe Ligges



ebi wrote:
> Dear all,
> 
> 
>  I have a question on the shardsplot package:klaR(see the below Example).
> 
> Plese tell me the meanings of " logstand <- t((t(logcount) /
sdlogcount) *
> c(1,2,6,5,5,3))", much more.
> 
> Why does this example use "c(1,2,6,5,5,3)" ?
> 
>  Examples:
> 
> 
> 
>      # Compute clusters and an Eight Directions Arranged Map for the
> 
>      # country data. Plotting the result.
> 
>      data(countries)
> 
>      logcount <- log(countries[,2:7])
> 
>      sdlogcount <- apply(logcount, 2, sd)
> 
>      logstand <- t((t(logcount) / sdlogcount) * c(1,2,6,5,5,3))
> 
>      cclasses <- cutree(hclust(dist(logstand)), k = 6)
> 
>      countryEDAM <- EDAM(logstand, classes = cclasses, sa = FALSE,
> 
>          iter.max = 10, random = FALSE)
> 
>      plot(countryEDAM, vertices = FALSE, label = TRUE, stck = FALSE)
> 
> 
> 
> 
> Sincerely yours,
> Mikio
> 
> 	[[alternative HTML version deleted]]
> 
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