y_memory.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}
{p 0 4}
{help contents:Top}
> {help y_basics:Basics}
{bind:> {bf:Memory considerations}}
{p_end}
{hline}

{title:Help file listings}

{p 4 8 4}
{bf:{help memory:Setting the size of memory}}{break}
    by default, Stata allocates 1 meg for data; you can change that

{p 4 8 4}
{bf:{help specialedition:Setting the maximum number of variables (Stata/SE only)}}{break}
    the default maximum is 2,048;
    {help specialedition:Stata/SE} allows more

{p 4 8 4}
{bf:{help matsize:Setting the maximum dimension of matrices}}{break}
    which controls the maximum number of variables allowed in a model

{p 4 8 4}
{bf:{help data_types:Data and storage types}}{break}
    {cmd:byte}s, {cmd:int}s, {cmd:long}s, {cmd:float}s, {cmd:double}s,
    and {cmd:str}{it:#}

{p 4 8 4}
{bf:{help compress:Compress data in memory}}{break}
    you can make your dataset smaller

{p 4 8 4}
{bf:{help recast:Change storage type of variable}}{break}
    you can change the datatype explicitly

{p 4 8 4}
{bf:{help limits:Maximum size limits}}{break}
    maximum number of variables, observations, characters in a command, ...

{p 4 8 4}
{bf:{help specialedition:Stata/SE}}{break}
    flavor of Stata that allows more variables, larger matrices, ...

{hline}