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Subject: | XploRe: Learning Guide |
See XploRe: |
Quantlet: | graph42 | |
Description: | Surface of the bivariate normal density. | |
Download: | graph42.xpl |
library ("plot") ; loads 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 gr = grsurface(x~f) ; generates surface plot(gr) ; plots the surface
Subject: | XploRe: Learning Guide |
See XploRe: |