_natscale.hlp

来自「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」· HLP 代码 · 共 49 行

{smcl}
{* 10mar2005}{...}
{cmd:help _natscale}{right:also see:  {help undocumented}}
{hline}

{title:Title}

{p 4 19 2}
{hi:_natscale} {hline 2} Obtain nice label or tick values


{title:Syntax}

	{cmd:_natscale} {it:#_min} {it:#_max} {it:#_n}


{title:Description}

{pstd}
{cmd:_natscale} returns in {cmd:r()} "nice" values for labeling or ticking of
the range {it:#_min} to {it:#_max} in approximately {it:#_n} steps.


{title:Saved results}

{pstd}
{cmd:_natscale} returns in {cmd:r()}

	scalar {cmd:r(n)}            number of values chosen
	scalar {cmd:r(min)}          first value to label or tick
	scalar {cmd:r(max)}          last  value to label or tick
	scalar {cmd:r(delta)}        ({cmd:r(max)}-{cmd:r(min)})/{cmd:r(n)}

{pstd}
The values to tick are
{cmd:r(min)},
{cmd:r(min)}+{cmd:r(delta)},
{cmd:r(min)}+2*{cmd:r(delta)},
...,
{cmd:r(min)}+({cmd:r(n)}-1)*{cmd:r(delta)}.


{title:Also see}

{psee}
Online:  {helpb graph}, 
{helpb _tsnatscale}
{p_end}