| Library: | graphic |
| See also: | grpcp grcontour3 grsunflower plotandrews |
| Quantlet: | grandrews | |
| Description: | Generates an Andrews plot. |
| Usage: | bp = grandrews (x, nt {, col}) | |
| Input: | ||
| x | n x p matrix | |
| nt | scalar number of gridpoints in [-pi,pi] | |
| col | color | |
| Output: | ||
| bp | composed graphical object | |
; load the library graphic
library("graphic")
; load the swiss banknote data
x = read("bank2")
; standardize x
x =(x-mean(x))./sqrt(var(x))
; select 20 observations
x = x[90:110,]
; generate the andrews curves
bp = grandrews(x, 50)
; show the andrews curves
d = createdisplay(1,1)
show(d, 1, 1, bp)
shows an Andrews plot