normalden(z,s) returns the rescaled standard normal density.
        normalden(z,s) = normalden(z)/s if s>0 and s not missing, otherwise,the result is missing (.).

normalden(1.95,10)=normalden(1.95)/10

normalden(x,m,s) returns the normal density with mean m and standard deviation s.  normalden(x,m,s) = normalden((x-m)/s)/s if s>0, and m and s are not missing, otherwise, the result is missing (.).

[此贴子已经被作者于2007-10-23 22:24:51编辑过]

所以你的去看书啊。

manual和help里面都有详细介绍。