import(stats, grDevices, graphics, MASS, ellipse)

export(correlation,
	   is.correlation,
	   as.correlation,
	   cwm.colors,
	   rwb.colors,
	   ryg.colors,
	   e,
	   lb,
	   ln,
	   ln1p,
	   lg,
	   lg1p,
	   panel.boxplot,
	   panel.density,
	   panel.hist,
	   panel.qqnorm,
	   panel.cor,
	   panel.ellipse,
	   panel.reg,
	   pcomp,
	   scores,
	   vectorplot)

S3method(vectorplot, default)
S3method(vectorplot, loadings)
S3method(vectorplot, correlation)

S3method(correlation, formula)
S3method(correlation, default)

S3method(print, correlation)
S3method(summary, correlation)
S3method(print, summary.correlation)
S3method(plot, correlation)
S3method(lines, correlation)

S3method(pcomp, formula)
S3method(pcomp, default)

S3method(print, pcomp)
S3method(summary, pcomp)
S3method(print, summary.pcomp)
S3method(plot, pcomp)
S3method(points, pcomp)
S3method(lines, pcomp)
S3method(text, pcomp)
S3method(screeplot, pcomp)
S3method(biplot, pcomp)
S3method(predict, pcomp)
#S3method(loadings, pcomp)  # This is NOT a generic function, but it works well on pcomp
S3method(pairs, pcomp)
S3method(scores, pcomp)
S3method(correlation, pcomp)
