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Usage:
sampcdf(x [,quiet:T, keep:T, draw:T] [,graphics keywords]), x REAL
vector with no MISSING elements
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Keywords:
distribution graphs, line graphs
sampcdf(x [,graphics keywords]), where x is a REAL vector, draws the
sample cumulative distribution function (CDF) of x. The graphics
keywords may include 'xlab', 'ylab', 'title', 'linetype', 'show' and
'keep'. See topic 'graph_keys'. Any MISSING elements are removed
sampcdf(x, quiet:T [,graphics keywords]) does the same except any
warning messages are suppressed.
sampcdf(x, save:T [,graphics keywords]) doesn't draw the CDF. Instead
it returns as value
structure(x:xvals,y:yvals [,graphics keywords],lines:T),
where xvals and yvals are REAL vectors defining the lines making up the
CDF. Note that any graphics keyword phrases that are arguments are
components of the structure.
sampcdf(x, save:T, draw:T [,graphics keywords]) both draws the CDF and
returns a structure.
Example:
Both
Cmd> sampcdf(x, xlab:"Bunny weight",\
title:"Sample CDF of Bunny Weights", wind:1)
and
Cmd> GRAPHWINDOWS[1] <- sampcdf(x, save:T, xlab:"Bunny weight",\
title:"Sample CDF of Bunny Weights")
will draw a sample CDF in graphics window 1.
Gary Oehlert
2003-01-15