Median Absolute Deviation — mad • featscreen

This function computes the median absolute deviation (MAD) of the values in x.

See the Details section below for further information.

Usage

mad(x, g = NULL, na.rm = TRUE)

Arguments

x: numerical vector.
g: (optional) vector or factor object giving the group for the corresponding elements of x.
na.rm: logical indicating whether missing values should be removed before computation.

Details

This function is a wrapper to the mad function.

If x can be partitioned into \(c\) subgroups (provided by g), then the \(MAD\) is computed for each class.

Examples

#Seed
set.seed(1010)

#Define size
n = 10

#Data
x = sample.int(n = 100, size = n, replace = TRUE)

#Grouping variable
g = c(rep("a", n/2), rep("b", n/2))

#Median Absolute Deviation
mad(x)
#> [1] 29.652

#Median Absolute Deviation by group
mad(x = x, g = g)
#>       a       b 
#> 34.0998 16.3086