aad
From lsr v0.5
by Daniel Navarro
Mean (average) absolute deviation from the mean
Calculates the mean absolute deviation from the sample mean.
Usage
aad(x, na.rm = FALSE)
Arguments
 x
 A vector containing the observations.
 na.rm
 A logical value indicating whether or not missing values should be removed. Defaults to
FALSE
Details
The aad
function calculates the average (i.e. mean) absolute deviation from the mean value of x
, removing NA
values if requested by the user. It exists primarily to simplify the discussion of descriptive statistics during an introductory stats class.
Value

Numeric.
Warning
This package is under development, and has been released only due to teaching constraints. Until this notice disappears from the help files, you should assume that everything in the package is subject to change. Backwards compatibility is NOT guaranteed. Functions may be deleted in future versions and new syntax may be inconsistent with earlier versions. For the moment at least, this package should be treated with extreme caution.
See Also
Examples
library(lsr)
# basic usage
X < c(1, 3, 6) # data
aad(X) # returns a value of 2
# removing missing data
X < c(1, 3, NA, 6) # data
aad(X) # returns NA
aad(X, na.rm = TRUE) # returns 2
Community examples
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