f_nchi2.ihlp

是一个经济学管理应用软件 很难找的 但是经济学学生又必须用到

{* 30nov2004}{...}
{phang}
{cmd:nchi2(}{it:n}{cmd:,}{it:L}{cmd:,}{it:x}{cmd:)} returns the
	cumulative noncentral chi-squared distribution with {it:n} degrees
	of freedom.  Here {it:n} must be an integer, 1{ul:<}{it:n}{ul:<}200 and
	noncentrality parameter {it:L}, 0{ul:<}{it:L}{ul:<}1000; returns 0
	unless {it:x}{ul:>}0.{p_end}