plsplot2: Plot pls results for both calibration and validation groups

In chengvt/cheng: cheng

Description

Plot pls results for both calibration and validation groups on the same graph.

Usage

plsplot2(x, ...)

Arguments

...	pass on to plot
mvr	mvr object
ncomp	number of component
location	legend position
show	select statistics to show
round	digits to round
newx	newx
newy	newy
fitline	add fitline or not
cex.stats	text size of statistics legend
cex.pt	point size
xlab	x-axis label
ylab	y-axis label
col.cal	point color for calibration group
col.val	point color for validation group
pch.cal	pch for calibration group
pch.val	pch for validation group

Examples

require(pls)
data(yarn)
yarn.cal <- yarn[yarn$train,]
yarn.val <- yarn[!yarn$train,]
model <- plsr(density ~ NIR, 15, data = yarn.cal, validation = "CV")
plot_ncomp(model)
ncomp <- 4 # 4 components seem to be appropriate
model <- plsr(density ~ NIR, ncomp, data = yarn.cal) # recalculate

plsplot(model) # calibration
plsplot(model, newx = yarn.val$NIR, newy = yarn.val$density) # validation

# now put those two plots together
plsplot2(model, newx = yarn.val$NIR, newy = yarn.val$density) # calibration and validation
plsplot2(model, newx = yarn.val$NIR, newy = yarn.val$density, col.cal = "forestgreen", col.val = "skyblue") # change point colors

chengvt/cheng documentation built on May 13, 2019, 3:52 p.m.