二元正态密度函数f(x, y)是什么答:(X,Y)~N(u1,u2;σ1^2,σ2^2;ρ)表示(X,Y)服从二元正态分布 (X,Y)的概率密度是:f(x,y)=1/(2πσ1σ2√1-ρ^2)*e^{-1/2(1-ρ^2)[(x-u1)^2/σ1^2-2ρ(x-u1)(y-u2)/σ1σ2+ (y-u2)^2/σ2^2]} (X,Y)~N(1,0,4,9,0.5)对照上式,也就是u1=1 u...
如何产生满足二元正态分布的随机数点答:试试: random函数。或者:function [data1, data2] = twogaussian(n1,mu1,cov1,n2,mu2,cov2);[data1, data2] = twogaussian(n1,mu1,sigma1,n2,mu2,sigma2);Function to simulate data from 2 Gaussian densities in d dimensions and to plot the data in the first 2 dimensions INPUT...