Conditioning plots of survey data

Description

Draws conditioned scatterplots ('Trellis' plots) of survey data using hexagonal binning or transparency.

Usage

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svycoplot(formula, design, style = c("hexbin", "transparent"), basecol =
"black", alpha = c(0, 0.8),hexscale=c("relative","absolute"), ...)

Arguments

formula

A graph formula suitable for xyplot

design

A survey design object

style

Hexagonal binning or transparent color?

basecol

The fully opaque 'base' color for creating transparent colors. This may also be a function; see svyplot for details

alpha

Minimum and maximum opacity

hexscale

Scale hexagons separate for each panel (relative) or across all panels (absolute)

...

Other arguments passed to grid.hexagons or xyplot

Value

An object of class trellis

Note

As with all 'Trellis' graphs, this function creates an object but does not draw the graph. When used inside a function or non-interactively you need to print() the result to create the graph.

See Also

svyplot

Examples

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data(api)
dclus2<-svydesign(id=~dnum+snum,  weights=~pw,
                    data=apiclus2, fpc=~fpc1+fpc2)

svycoplot(api00~api99|sch.wide*comp.imp, design=dclus2, style="hexbin")
svycoplot(api00~api99|sch.wide*comp.imp, design=dclus2, style="hexbin", hexscale="absolute")

svycoplot(api00~api99|sch.wide, design=dclus2, style="trans")

svycoplot(api00~meals|stype,design=dclus2,
  style="transparent",
  basecol=function(d) c("darkred","purple","forestgreen")[as.numeric(d$stype)],
  alpha=c(0,1)) 

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