aad {lsr} | R Documentation |
Mean (average) absolute deviation from the mean
Description
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 |
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
Examples
# basic usage
X <- c(1, 3, 6) # data
aad(X) # returns a value of 1.777
# removing missing data
X <- c(1, 3, NA, 6) # data
aad(X) # returns NA
aad(X, na.rm = TRUE) # returns 1.777
[Package lsr version 0.5.2 Index]