getVarFillValue

Retrieves the missing value of a variable, otherwise, it returns the default _FillValue.

Available in version 4.3.1 and later.

Prototype

load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/contributed.ncl"  ; This library is automatically loaded
                                                             ; from NCL V6.2.0 onward.
                                                             ; No need for user to explicitly load.

	function getVarFillValue (
		x       
	)

Arguments

An array of any dimensionality and any type.

Return value

A value equal to the _FillValue of x, of the same type as x.

Description

Determines the _FillValue by first looking to see if the variable has a missing value attribute. This can be an attribute named "_FillValue" or "missing_value". If no missing value attribute is present, the default _FillValue for the variable type is returned.

See Also

getFillValue.

In addition, there are many metadata tools available.

Examples

Example 1: Create a new variable and assign the _FillValue associated with some variable (here, "w"). If "w" has no _FillValue, then "q" will be assigned the default numeric _FillValue.

     q@_FillValue = getVarFillValue(w)