# Supplemental projections.

### Description

Performs a supplementary projection across ExPosition (and related) techniques.

### Usage

1 2 |

### Arguments

`sup.transform` |
Data already transformed for supplementary projection. That is, the output from: |

`f.scores` |
Active factor scores, e.g., res$ExPosition.Data$fi |

`Dv` |
Active singular values, e.g., res$ExPosition.Data$pdq$Dv |

`scale.factor` |
allows for a scaling factor of supplementary projections. Primarily used for MCA supplemental projections to a correction (e.g., Benzecri). |

`symmetric` |
a boolean. Default is TRUE. If FALSE, factor scores are computed with asymmetric properties (for rows only). |

### Value

A list with:

`f.out` |
Supplementary factor scores. |

`d.out` |
Supplementary square distances. |

`r.out` |
Supplementary cosines. |

### Author(s)

Derek Beaton

### See Also

It is preferred for users to compute supplemental projections via `supplementaryRows`

and `supplementaryCols`

. These handle some of the nuances and subtleties due to the different methods.