mf_editmissing.hlp

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

{smcl}
{* 11nov2004}{...}
{cmd:help mata editmissing()}
{hline}
{* index missing values}{...}
{* index editmissing()}{...}
{* index _editmissing()}{...}
{* index missing values}{...}

{title:Title}

{p 4 8 2}
{bf:[M-5] editmissing() -- Edit matrix for missing values}


{title:Syntax}

{p 8 8 2}
{it:numeric matrix}
{cmd:editmissing(}{it:numeric matrix A}{cmd:,}
{it:numeric scalar v}{cmd:)}

{p 8 8 2}
{it:void}{bind:         }
{cmd:_editmissing(}{it:numeric matrix a}{cmd:,}
{it:numeric scalar v}{cmd:)}


{title:Description}

{p 4 4 2}
{cmd:editmissing(}{it:A}{cmd:,} {it:v}{cmd:)}
returns {it:A} with any missing values changed to {it:v}.

{p 4 4 2}
{cmd:_editmissing(}{it:A}{cmd:,} {it:v}{cmd:)}
replaces all missing values in {it:A} with {it:v}.


{title:Remarks}

{p 4 4 2}
{cmd:editmissing()} and {cmd:_editmissing()} are very fast.

{p 4 4 2}
If you want to change nonmissing values to other values, including missing,
see {bf:{help mf_editvalue:[M-5] editvalue()}}.



{title:Conformability}

    {cmd:editmissing(}{it:A}{cmd:,} {it:v}{cmd:)}:
		{it:A}:  {it:r x c}
		{it:v}:  1 {it:x} 1
	   {it:result}:  {it:r x c}

    {cmd:_editmissing(}{it:A}{cmd:,} {it:v}{cmd:)}:
	{it:input:}
		{it:A}:  {it:r x c}
		{it:v}:  1 {it:x} 1
	{it:output:}
		{it:A}:  {it:r x c}


{title:Diagnostics}

{p 4 4 2}
{cmd:editmissing(}{it:A}{cmd:,} {it:v}{cmd:)} and 
{cmd:_editmissing(}{it:A}{cmd:,} {it:v}{cmd:)}
change all missing elements to {it:v}, including not only {cmd:.} but also 
{cmd:.a}, {cmd:.b}, ..., {cmd:.z}.


{title:Source code}

{p 4 4 2}
{view editmissing.mata, adopath asis:editmissing.mata};
{cmd:_editmissing()} is built-in.


{title:Also see}

{p 4 13 2}
Manual:  {hi:[M-5] editmissing()}

{p 4 13 2}
Online:  help for 
{bf:{help mf_editvalue:[M-5] editvalue()}};
{bf:{help m4_manipulation:[M-4] manipulation}}
{p_end}