scalar.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}
{* 09feb2005}{...}
{cmd:help scalar} {right:dialogs:  {dialog scalardefine:define}  {dialog scalarlist:list}  {dialog scalardrop:drop}}
{hline}

{title:Title}

{p2colset 5 19 21 2}{...}
{p2col :{hi:[P] scalar} {hline 2}}Scalar variables{p_end}
{p2colreset}{...}


{title:Syntax}

{p 8 15 2}{cmdab:sca:lar} [{cmdab:de:fine}] {it:scalar_name} {cmd:=} {it:exp}

{p 8 15 2}{cmdab:sca:lar} {c -(} {cmdab:di:r} | {cmdab:l:ist} {c )-} [
{cmd:_all} | {it:scalar_name}({it:s}) ]

{p 8 15 2}{cmdab:sca:lar} {cmd:drop} {c -(} {cmd:_all} | {it:scalar_name}({it:s})
{c )-}


{title:Description}

{pstd}
{cmd:scalar define} defines the contents of the scalar
variable {it:scalar_name}.  The expression may be either a numeric
or a string expression.

{pstd}
{cmd:scalar dir} and {cmd:scalar list} both list
the contents of currently defined scalars.

{pstd}
{cmd:scalar drop} eliminates defined scalars from memory.


{title:Examples}

{phang}{cmd:. scalar a = 2}{p_end}
{phang}{cmd:. scalar b = a+3}{p_end}
{phang}{cmd:. scalar root2 = sqrt(2)}{p_end}
{phang}{cmd:. scalar x = .a}{p_end}
{phang}{cmd:. scalar s1 = "hello world"}{p_end}
{phang}{cmd:. scalar s2 = substr(s1,1,5)}{p_end}
{phang}{cmd:. scalar list}{p_end}
{phang}{cmd:. scalar drop a b}{p_end}
{phang}{cmd:. scalar drop _all}


{title:Also see}

{psee}
Manual:  {bf:[P] scalar}

{psee}
Online:  {helpb macro}, {helpb matrix}
{p_end}