avg

Computes the average of a variable regardless of dimensionality.

Prototype

	function avg (
		x  : numeric   
	)

	return_val [1] :  float or double

Arguments

An array of one or more numeric values of any dimensionality.

Return value

The return value will be a scalar of type double if x is double, and a scalar of type float otherwise.

Description

Returns the average of a variable regardless of dimensionality. avg ignores missing values (x@_FillValue). To determine the number of data values used to calculate the average use:

   N = num(.not.ismissing(x))

See Also

dim_avg , dim_stat4

Examples

Example 1

;
; Create example array
;
  a = (/ (/1,2,3/), (/4,5,6/), (/7,-999,9/)/)
  a@_FillValue = -999

;
; Compute average and the number of non-missing values
;
  average = avg(a)
  n = num(.not.ismissing(a))
  print(average)    ; a scalar numeric value 
  print(n)          ; number of non-missing values