mf_strupper.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}
{* 17mar2005}{...}
{cmd:help mata strupper()}
{hline}
{* index strupper()}{...}
{* index strlower()}{...}
{* index strproper()}{...}
{* index upper case}{...}
{* index lower case}{...}

{title:Title}

{p 4 4 2}
{bf:[M-5] strupper() -- Convert string to uppercase (lowercase)}


{title:Syntax}

{p 8 12 2}
{it:string matrix} {cmd:strupper(}{it:string matrix s}{cmd:)}

{p 8 12 2}
{it:string matrix} {cmd:strlower(}{it:string matrix s}{cmd:)}

{p 8 12 2}
{it:string matrix} {cmd:strproper(}{it:string matrix s}{cmd:)}



{title:Description}

{p 4 4 2}
{cmd:strupper(}{it:s}{cmd:)} returns {it:s}, converted to uppercase.

{p 4 4 2}
{cmd:strlower(}{it:s}{cmd:)} returns {it:s}, converted to lowercase.

{p 4 4 2}
{cmd:strproper(}{it:s}{cmd:)} returns a string with the first letter capitalized
and any other letters capitalized that immediately follow characters that are
not letters; all other letters are converted to lowercase.

{p 4 4 2}
When {it:s} is not a scalar, these functions return element-by-element
results.


{title:Remarks}

{p 4 4 2}
{cmd:strproper("mR. joHn a. sMitH")} returns "Mr. John A. Smith".

{p 4 4 2}
{cmd:strproper("jack o'reilly")} returns "Jack O'Reilly".

{p 4 4 2}
{cmd:strproper("2-cent's worth")} returns "2-Cent'S Worth".

{p 4 4 2}
In addition, 
Stata understands 
{cmd:strupper()}, {cmd:strlower()}, and {cmd:strproper()} as
synonyms for its own 
{cmd:upper()}, {cmd:lower()}, and {cmd:proper()} functions, so you can 
use the {cmd:str*()} names in both your Stata and Mata code.


{title:Conformability}

{p 4 4 2}
{cmd:strupper(}{it:s}{cmd:)},
{cmd:strlower(}{it:s}{cmd:)},
{cmd:strproper(}{it:s}{cmd:)}:
{p_end}
	    {it:s}:  {it:r x c}
       {it:result}:  {it:r x c}


{title:Diagnostics}

{p 4 4 2}
None.


{title:Source code}

{p 4 4 2}
Functions are built-in.


{title:Also see}

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

{p 4 13 2}
Online:  help for 
{bf:{help m4_string:[M-4] string}}
{p_end}