linrood_wgt

Computes the weights used by the Lin-Rood Model.

Prototype

	function linrood_wgt (
		nlat [1] : byte, short, integer or long   
	)

	return_val [nlat] :  double

Arguments

Total number of latitude points. This may be odd or even.

As of version 6.0.0, this can be of type byte, short, integer or long.

Description

This function returns a one dimensional array of Lin-Rood weights. The returned values are of type double. The sum of the weights will be 2.0.

See Also

linrood_latwgt

Examples

Example 1

Generate Lin-Rood weights (type double) for a user specified number of latitudes:

  nlat = 8  

  wgt  = linrood_wgt(nlat)

Output:

          wgt      sum[wgt]
         ------     -------
    1   0.02507     0.02507
    2   0.19310     0.21817
    3   0.34795     0.56612
    4   0.43388     1.00000
    5   0.43388     1.43388
    6   0.34795     1.78183
    7   0.19310     1.97493
    8   0.02507     2.00000

The doubletofloat function can be used to convert the output from double to float, if desired:

  nlat = 8  

  wgt  = doubletofloat(linrood_wgt(nlat))