Plot Ridge Functions for Projection Pursuit Regression Fit
Usage
plot.ppr(fit, ask, type="o", ...)
Arguments
fit
|
A fit of class "ppr" as produced by a call to ppr .
|
ask
|
the graphics parameter ask : see par for details. If set to True
will ask between the plot of each cross-section.
|
type
|
the type of line to draw
|
...
|
further graphical parameters
|
Value
NoneSide Effects
A series of plots are drawn on the current graphical device, one for
each term in the fit.See Also
ppr
, par
Examples
data(rock)
attach(rock)
area1 <- area/10000; peri1 <- peri/10000
par(mfrow=c(3,2))# maybe: , pty="s")
rock.ppr <- ppr(log(perm) ~ area1 + peri1 + shape,
data=rock, nterms=2, max.terms=5)
plot(rock.ppr, main="ppr(log(perm)~ ., nterms=2, max.terms=5)")
plot(update(rock.ppr, bass=5), main = "update(..., bass = 5)")
plot(update(rock.ppr, sm.method="gcv", gcvpen=2),
main = "update(..., sm.method=\"gcv\", gcvpen=2)")