This method sets the raster series layer to the frame associated with a specific index.
            Example
            This example opens a spatiotemporal series from sample gridded data in the ENVI installation path. It then creates a raster series layer and sets it to the frame associated with index #4.
            
            e = ENVI()
             
            
            seriesFile = Filepath('AirTemp.series', Subdir=['data','time_series'], $
              Root_Dir = e.Root_Dir)
             
            
            series = ENVIRasterSeries(seriesFile)
             
            
            View = e.GetView()
             
            
            Layer = View.CreateLayer(series)
             
            
            
            Print, series
             
            
            
            Layer.Set, 3
            Syntax
            ENVIRasterSeriesLayer.Set, Index [, ERROR=variable]
            Arguments
            Index
            Specify a zero-based index number to set the raster series layer to. 
            Keywords
            ERROR (optional)
            Set this keyword to a named variable that will contain any error message issued during execution of this routine. If no error occurs, the ERROR variable will be set to a null string (''). If an error occurs and the routine is a function, then the function result will be undefined.
            When this keyword is not set and an error occurs, ENVI returns to the caller and execution halts. In this case, the error message is contained within !ERROR_STATE and can be caught using IDL's CATCH routine. See IDL Help for more information on !ERROR_STATE and CATCH.
            See Manage Errors for more information on error handling in ENVI programming.
            Version History
            
            See Also
            ENVIRasterSeriesLayer