| Library: | nn |
| See also: | nnfunc2 nninit2 |
| Quantlet: | nnvisu2 | |
| Description: | nnvisu2 computes the visualization for a given feed forward network by non-metric multidimensional scaling. |
| Usage: | (xvd,verr)=nnvisu2(dis,xv) | |
| Input: | ||
| dis | n x 3 matrix of distances | |
| xv | m x 2 starting position | |
| Output: | ||
| xvd | m x 2 computed new positions | |
library("nn")
x = read("bank2") ; read bank2 data
y =(1:200).<101
;; build logit model
wei =(1:6)~(6.*matrix(6))~normal(6)
unit = trans(#(-1,0)).*matrix(7)|trans(#(1,2))
ind = nninit2(wei, unit)
wei = index(wei, ind)
randomize(0)
wei[,3] = abs(wei[,3]) ; most intersting connections are near 0
pos = normal(rows(unit),2)
pos = nnvisu2(wei, pos)
pos
Contents of pos