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**rrcov**: Scalable Robust Estimators with High Breakdown Point**PcaGrid-class**: Class "PcaGrid" - Robust PCA using PP - GRID search Algorithm

# Class "PcaGrid" - Robust PCA using PP - GRID search Algorithm

### Description

Holds the results of an approximation of the PP-estimators for PCA using the grid search algorithm in the plane.

### Objects from the Class

Objects can be created by calls of the form `new("PcaGrid", ...)`

but the
usual way of creating `PcaGrid`

objects is a call to the function
`PcaGrid()`

which serves as a constructor.

### Slots

`call`

,`center`

,`scale`

,`loadings`

,`eigenvalues`

,`scores`

,`k`

,`sd`

,`od`

,`cutoff.sd`

,`cutoff.od`

,`flag`

,`n.obs`

:-
from the

`"Pca"`

class.

### Extends

Class `"PcaRobust"`

, directly.
Class `"Pca"`

, by class `"PcaRobust"`

, distance 2.

### Methods

- getQuan
`signature(obj = "PcaGrid")`

: ...

### Author(s)

Valentin Todorov valentin.todorov@chello.at

### References

Todorov V & Filzmoser P (2009),
An Object Oriented Framework for Robust Multivariate Analysis.
*Journal of Statistical Software*, **32**(3), 1–47.
URL http://www.jstatsoft.org/v32/i03/.

### See Also

`PcaRobust-class`

, `Pca-class`

, `PcaClassic`

, `PcaClassic-class`

### Examples

1 | ```
showClass("PcaGrid")
``` |

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