image {mixOmics} | R Documentation

## Plot the cross-validation score.

### Description

This function provide a image map (checkerboard plot) of the cross-validation score obtained by the `tune.rcc` function.

### Usage

    ## S3 method for class 'tune.rcc'
    plot(x, col = heat.colors, ...)

    ## S3 method for class 'tune.rcc'
    image(x, col = heat.colors, ...)

### Arguments

`x` | object returned by `tune.rcc`.
`col` | a character string specifying the colors function to use: `terrain.colors`, `topo.colors`, `rainbow` or similar functions. Defaults to `heat.colors`.
`...` | not used currently.

### Details

`plot.tune.rcc` creates an image map of the matrix `object$mat` containing the cross-validation score obtained by the `tune.rcc` function. Also a color scales strip is plotted.

### Value

none

### Author(s)

Sébastien Déjean and Ignacio González.

### See Also

`tune.rcc`, `image`.

### Examples

    data(nutrimouse)
    X <- nutrimouse$lipid
    Y <- nutrimouse$gene

    ## this can take some seconds
    cv.score <- tune.rcc(X, Y, validation = "Mfold", plot = FALSE)
    plot(cv.score)

    # image(cv.score) # same result as plot()

[Package mixOmics version 6.6.2 Index]