f_clip.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:clip(}{it:x}{cmd:,}{it:a}{cmd:,}{it:b}{cmd:)} returns {it:x} if
	{it:a}<{it:x}<{it:b}, {it:b} if {it:x}{ul:>}{it:b}, {it:a} if
	{it:x}{ul:<}{it:a}, and {it:missing} if {it:x} is {it:missing}
	or {it:a}>{it:b}. If {it:a}={it:missing} and/or
	{it:b}={it:missing}, this is interpreted as
	{it:a}=-infinity and/or {it:b}=+infinity.
	{cmd:clip(}{it:x}{cmd:,}{it:a}{cmd:,}{it:b}{cmd:)} returns {it:x} if
	{it:x} is missing.{p_end}