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isproc

Returns True for every element of the input that is a defined procedure.

Prototype

	function isproc (
		proc_names  : string   
	)

	return_val [dimsizes(proc_names)] :  logical

Arguments

proc_names

An array of strings of any dimensionality.

Description

For each element in the proc_names list, isproc returns True if it is the name of a defined procedure, and False if the procedure doesn't exist or is a function.

Note that this function works on both built-in procedures as well as procedures written in NCL.

See Also

isfunc

Examples

Example 1

  print(isproc("sin"))       ; False because "sin" is a function
  print(isproc("print"))     ; True
  print(isproc("lalala"))    ; False because "lalala" doesn't exist

Example 2

This example tests for existing procedures that may be part of an NCL script:

load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/gsn_code.ncl"
...
  print(isproc("gsn_open_wks"))      ; False because it's a function
  print(isproc("gsn_panel"))         ; True
  print(isproc("gsn_csm_contour"))   ; False because "gsn_csm_contour"
                                     ; doesn't exist (it's in gsn_csm.ncl)