plot.ppr {stats} | R Documentation |
Plot ridge functions for projection pursuit regression fit.
## S3 method for class 'ppr' plot(x, ask, type = "o", ...)
x |
A fit of class |
ask |
the graphics parameter |
type |
the type of line to draw |
... |
further graphical parameters |
None
A series of plots are drawn on the current graphical device, one for each term in the fit.
require(graphics) with(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)") })