VAVEDEV function
VAVEDEV(variable[,filter]) returns the average of absolute deviations of a variable. An optional filter can be specified.
It is calculated as follows:
$$\frac{\sum_{}^{}{|x-\bar{x}|}}{n} $$
Note
This function calculates a statistic on a variable. Be careful when you use this function in cells of the columns that correspond to the variable, because this actually adds a value to the variable which can lead to unexpected and faulty results. You can exclude the cell to avoid this.