mf_favorspeed.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}
{* 15mar2005}{...}
{cmd:help mata favorspeed()}
{hline}
{* index favorspeed()}{...}
{* index matafavor tt}{...}

{title:Title}

{p 4 4 2}
{bf:[M-5] favorspeed() -- Whether speed or space is to be favored}


{title:Syntax}

{p 8 12 2}
{it:real scalar} 
{cmd:favorspeed()}


{title:Description}

{p 4 4 2}
{cmd:favorspeed()} returns 
1 if the user has 
{cmd:mata} {cmd:set} {cmd:matafavor} {cmd:speed}
and 0 if the user has 
{cmd:mata} {cmd:set} {cmd:matafavor} {cmd:space} or has not set
{cmd:matafavor} at all; see 
{bf:{help mata_set:[M-3] mata set}}.


{title:Remarks}

{p 4 4 2}
Sometimes in programming you can choose between writing code 
that runs faster but consumes more memory, or writing code that conserves 
memory at the cost of execution speed.  {cmd:favorspeed()} tells you 
the user's preference:

	{cmd}if (favorspeed()) {c -(}
		/* code structured for speed over memory */
	{c )-}
	else {c -(}
		/* code structured for memory over speed */
	{c )-}{txt}


{title:Conformability}

    {cmd:favorspeed()}:
	   {it:result}:  1 {it:x} 1

	
{title:Diagnostics}

{p 4 4 2}
None.


{title:Source code}

{p 4 4 2}
Function is built-in.


{title:Also see}

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

{p 4 13 2}
Online:  help for 
{bf:{help mata_set:[M-3] mata set}};
{bf:{help m4_programming:[M-4] programming}}
{p_end}