# discrimin: Linear Discriminant Analysis (descriptive statistic) In ade4: Analysis of Ecological Data: Exploratory and Euclidean Methods in Environmental Sciences

 discrimin R Documentation

## Linear Discriminant Analysis (descriptive statistic)

### Description

performs a linear discriminant analysis.

### Usage

```discrimin(dudi, fac, scannf = TRUE, nf = 2)
## S3 method for class 'discrimin'
plot(x, xax = 1, yax = 2, ...)
## S3 method for class 'discrimin'
print(x, ...)
```

### Arguments

 `dudi` a duality diagram, object of class `dudi` `fac` a factor defining the classes of discriminant analysis `scannf` a logical value indicating whether the eigenvalues bar plot should be displayed `nf` if scannf FALSE, an integer indicating the number of kept axes

 `x` an object of class 'discrimin' `xax` the column number of the x-axis `yax` the column number of the y-axis `...` further arguments passed to or from other methods

### Value

returns a list of class 'discrimin' containing :

 `nf` a numeric value indicating the number of kept axes `eig` a numeric vector with all the eigenvalues `fa` a matrix with the loadings: the canonical weights `li` a data frame which gives the canonical scores `va` a matrix which gives the cosines between the variables and the canonical scores `cp` a matrix which gives the cosines between the components and the canonical scores `gc` a data frame which gives the class scores

### Author(s)

Daniel Chessel
Anne-Béatrice Dufour anne-beatrice.dufour@univ-lyon1.fr

`lda` in package `MASS`

### Examples

```data(chazeb)
dis1 <- discrimin(dudi.pca(chazeb\$tab, scan = FALSE), chazeb\$cla,
scan = FALSE)
dis1