predict.mca {MASS} | R Documentation

## Predict Method for Class `mca'

### Description

Used to compute coordinates for additional rows or additional factors in a multiple correspondence analysis.

### Usage

    predict(object, newdata, type=c("row", "factor"), ...)

### Arguments

`object` | An object of class `"mca"`, usually the result of a call to `mca`.
`newdata` | A data frame containing either additional rows of the factors used to fit `object` or additional factors for the cases used in the original fit.
`type` | Are predictions required for further rows or for new factors?
`...` | Additional arguments from `predict`: unused.

### Value

If `type = "row"`, the coordinates for the additional rows.
If `type = "factor"`, the coordinates of the column vertices for the levels of the new factors.

### See Also

`mca`, `plot.mca`