# biplot.mvr

##### Biplots of PLSR and PCR Models.

Biplot method for `mvr`

objects.

- Keywords
- multivariate, hplot, regression

##### Usage

```
# S3 method for mvr
biplot(x, comps = 1:2, which = c("x", "y", "scores", "loadings"),
var.axes = FALSE, xlabs, ylabs, main, …)
```

##### Arguments

- x
an

`mvr`

object.- comps
integer vector of length two. The components to plot.

- which
character. Which matrices to plot. One of

`"x"`

(X scores and loadings),`"y"`

(Y scores and loadings),`"scores"`

(X and Y scores) and`"loadings"`

(X and Y loadings).- var.axes
logical. If

`TRUE`

, the second set of points have arrows representing them.- xlabs
either a character vector of labels for the first set of points, or

`FALSE`

for no labels. If missing, the row names of the first matrix is used as labels.- ylabs
either a character vector of labels for the second set of points, or

`FALSE`

for no labels. If missing, the row names of the second matrix is used as labels.- main
character. Title of plot. If missing, a title is constructed by

`biplot.mvr`

.- …
Further arguments passed on to

`biplot.default`

.

##### Details

`biplot.mvr`

can also be called through the `mvr`

plot
method by specifying `plottype = "biplot"`

.

##### See Also

##### Examples

```
# NOT RUN {
data(oliveoil)
mod <- plsr(sensory ~ chemical, data = oliveoil)
# }
# NOT RUN {
## These are equivalent
biplot(mod)
plot(mod, plottype = "biplot")
## The four combinations of x and y points:
par(mfrow = c(2,2))
biplot(mod, which = "x") # Default
biplot(mod, which = "y")
biplot(mod, which = "scores")
biplot(mod, which = "loadings")
# }
```

*Documentation reproduced from package pls, version 2.7-2, License: GPL-2*