Range {DescTools} | R Documentation |

## (Robust) Range

### Description

Determines the range of the data, which can possibly be trimmed before calculating the extreme values. The robust range version is calculated on the basis of the trimmed mean and variance (see Details).

### Usage

```
Range(x, trim = NULL, robust = FALSE, na.rm = FALSE, ...)
```

### Arguments

`x` |
a numeric vector. |

`trim` |
the fraction (0 to 0.5) of observations to be trimmed from each
end of |

`robust` |
logical, determining whether the robust or the convential range should be returned. |

`na.rm` |
a logical value indicating whether |

`...` |
the dots are sent to |

### Details

The R base function range returns the minimum and maximum value of a numeric object. Here we return the span of a (possibly trimmed) numeric vector, say the difference of maximum and minimum value.

If robust is set to `TRUE`

the function determines the trimmed mean m
and then the "upper trimmed mean" s of absolute deviations from m,
multiplied by `fac`

(fac is 3 by default). The robust minimum is then
defined as m-fac*s or min(x), whichever is larger, and similarly for the
maximum.

### Value

If `trim`

is zero (the default), the arithmetic mean of the
values in `x`

is computed, as a numeric or complex vector of length
one. If `x`

is not logical (coerced to numeric), numeric (including
integer) or complex, `NA_real_`

is returned, with a warning.

If `trim`

is non-zero, a symmetrically trimmed mean is computed with a
fraction of `trim`

observations deleted from each end before the mean
is computed.

### Author(s)

Werner Stahel, ETH Zurich (robust range)

Andri Signorell
andri@signorell.net

### See Also

### Examples

```
x <- c(0:10, 50)
xm <- Range(x)
c(xm, Range(x, trim = 0.10))
x <- c(rnorm(20), rnorm(3, 5, 20))
Range(x, robust=TRUE)
# compared to
Range(x)
```

*DescTools*version 0.99.55 Index]