isfilevardim

This function is used to check if file variable dimensions are defined in a file variable before accessing them.

Synopsis

	function isfilevardim( 
		thefile[1]:file,
		varname[1]:string
		dimnames:string
	)

Arguments

thefile: thefile is the file to check.
varname: varname must be single string variable name.
dimnames: dimnames must be an array of strings, but can have any dimension.

Description

For each element in the dimnames parameter, isfilevardim returns True if the element is a dimension of the file variable varname in the file thefile and False if not. The output of isfilevardim is a logical array with the same dimensions as the dimnames parameter. If the parameter thefile is not a valid file or varname isn't a defined file variable, then a single missing value is returned.

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$Revision: 1.5 $ $Date: 1998/06/15 21:29:52 $