Subject: | XploRe: Learning Guide |
See XploRe: |
Quantlet: | graph43 | |
Description: | Contour plot of the bivariate normal density. | |
Download: | graph43.xpl |
library ("plot") ; loads the library plot x0 = #(-3, -3) h = #(0.2, 0.2) n = #(31, 31) x = grid(x0, h, n) ; generates a bivariate grid f = exp(-(x[,1]^2+x[,2]^2)/1.5)/(1.5*pi) ; computes density of bivariate ; normal with correlation 0.5 c = 0.2*(1:4).*max(f) ; selects contour lines as 10%,...,90% ; times the maximum density gr = grcontour2(x~f, c) ; generates contours plot(gr) ; plots the contours
Subject: | XploRe: Learning Guide |
See XploRe: |