x = (0:0.02:10);y = lognpdf(x,1.73,0.22);plot(x,y); grid;xlabel('x'); ylabel('p')这是对数正态分布 x = (0:0.02:10);y = normpdf(x,1.73,0.22);plot(x,y); grid;xlabel('x'); ylabel('p')这是正态分布
