spls (version 1.0-0)

plot.spls: Plot the coefficient path of SPLS regression

Description

Provide the coefficient path plot of SPLS regression as a function of the number of hidden components (K) when eta is fixed.

Usage

## S3 method for class 'spls':
plot( x, yvar=c(1:ncol(x$y)), ... )

Arguments

x

A fitted SPLS object.

yvar

Index vector of responses to be plotted.

...

Other parameters to be passed through to generic plot.

Value

• NULL.

Details

plot.spls provides the coefficient path plot of SPLS fits. The plot shows how the estimated coefficients change as a function of the number of hidden components (K), when eta is fixed at the value used by the original SPLS fit.

References

Chun, H. and Keles, S. (2007). "Sparse partial least squares for simultaneous dimension reduction and variable selection", (http://www.stat.wisc.edu/~keles/Papers/SPLS_Nov07.pdf).

See Also

print, predict, and coef methods for spls.

Examples

data(yeast)
# SPLS with eta=0.7 & 8 hidden components
f <- spls( yeast$x, yeast$y, K=8, eta=0.7 )
# Draw the coefficient path plots for the first two responses
plot( f, yvar=c(1:2) )