PROCEDURE makegap,dg,x,y PURPOSE: Creates data gaps (by inserting NaN) when the time between data points is larger than a value either passed in by the user or calculated to a default. INPUT: dg: If dg is positive, it is the maximum allowed time gap. Any time gaps greater than dg will be treated as data gaps. If dg is negative, the procedure will calculate a default value for dg of 20 times the the smallest time gap in the time series. x: The time array. y: The data array. KEYWORDS: v: Optional third dimension array. dy: Optional uncertainty in y. CREATED BY: Peter Schroeder LAST MODIFIED: @(#)makegap.pro 1.2 98/02/18