RobScale {DescTools} | R Documentation |

## Robust Scaling With Median and Mad

### Description

`RobScale`

is a wrapper function for robust standardization, using `median`

and `mad`

instead of `mean`

and `sd`

.

### Usage

```
RobScale(x, center = TRUE, scale = TRUE)
```

### Arguments

`x` |
a numeric matrix(like object). |

`center` |
a logical value defining whether x should be centered by the median. Centering is done by subtracting the column medians (omitting NAs) of x from their corresponding columns. If center is FALSE, no centering is done. |

`scale` |
a logical value defining whether x should be scaled by the mad. Scaling is done by dividing the (centered) columns of x by their mad. If scale is FALSE, no scaling is done. |

### Value

the centered, scaled matrix. The numeric centering and scalings used (if any) are returned as attributes "scaled:center" and "scaled:scale"

### Author(s)

Andri Signorell <andri@signorell.net>

### See Also

`scale`

, `sweep`

### Examples

```
x <- d.pizza$temperature
plot(x=seq_along(x), y=RobScale(x), xlim=c(0,100))
points(x=seq_along(x), y=scale(x), col="red" )
```

[Package

*DescTools*version 0.99.54 Index]