spikeplot.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 spikeplot} {right:dialog:  {bf:{dialog spikeplot}}}
{hline}

{title:Title}

{p2colset 5 22 24 2}{...}
{p2col:{hi:[R] spikeplot} {hline 2}}Spike plots and rootograms{p_end}
{p2colreset}{...}


{title:Syntax}

{p 8 18 2}
{cmd:spikeplot}
{varname}
{ifin}
{weight}
[{cmd:,} {it:options}]

{synoptset 18 tabbed}{...}
{synopthdr}
{synoptline}
{syntab:Main}
{synopt:{opt r:ound(#)}}round {varname} to nearest multiple of {it:#} (bin
width){p_end}
{synopt:{opt frac:tion}}make vertical scale the proportion of total values;
default is frequencies{p_end}
{synopt:{opt root}}make vertical scale show square roots of frequencies{p_end}

{syntab:Plot}
{synopt:{it:{help twoway_spike:spike_options}}}affect rendition of plotted
spikes{p_end}

{syntab:Add plot}
{synopt:{opth "addplot(addplot_option:plot)"}}add other plots to generated graph{p_end}

{syntab:Y-Axis, X-Axis, Caption, Legend, Overall, By}
{synopt:{it:{help twoway_options}}}any options documented in
{bind:{bf:[G]} {it:twoway_options}}{p_end}
{synoptline}
{p2colreset}{...}
{p 4 6 2}
{opt fweight}s, {opt aweight}s, and {opt iweight}s are allowed; see
{help weight}.


{title:Description}

{pstd}
{opt spikeplot} produces a frequency plot for a variable in which the
frequencies are depicted as vertical lines from zero.  The frequency may be
a count, a fraction, or the square root of the count (Tukey's rootogram).
The vertical lines may also originate from a different
baseline than zero at the user's option.


{title:Options}

{dlgtab:Main}

{phang}
{opt round(#)} rounds the values of {varname} to the
  nearest multiple of {it:#}.  This effectively specifies the bin width.

{phang}
{opt fraction} specifies that the vertical scale be the proportion
  of total values (percentage) rather than the count.

{phang}
{opt root} specifies that the vertical scale show square roots.
  This option may not be specified if {opt frac} is specified.

{dlgtab:Plot}

{phang}
{it:spike_options} affect the rendition of the plotted spikes; see
{helpb twoway spike}.

{dlgtab:Add plot}

{phang}
{opt addplot(plot)} provides a way to add other plots to the generated
graph; see {it:{help addplot_option}}.

{dlgtab:Y-Axis, X-Axis, Caption, Legend, Overall, By}

{phang}
{it:twoway_options} are any of the options documented in
{it:{help twoway_options}}.  These include options for titling the graph
(see {it:{help title_options}}), options for saving the graph to disk
(see {it:{help saving_option}}), and the {opt by()} option
(see {it:{help by_option}}).


{title:Examples}

{phang}{cmd:. spikeplot wallasp, round(5)}

{phang}{cmd:. spikeplot day [w=rain] if rain, ytitle("Rainfall in mm")}

{phang}{cmd:. spikeplot age [w=pop], ytitle("Population in 000")}


{title:Also see}

{psee}
Manual:  {bf:[R] spikeplot}

{psee}
Online:  {helpb histogram}
{p_end}