The compound smoother 4253H, twice is recommended. The smoother 3RSSH, twice is popular when calculating by hand as it requires simpler computations and is included for comparison purposes.
Not applicable.
Internal changes have been made to this function as follows:
- At Mark 25: nag_running_median_smoother (g10cac) is a smoothing function with two possible smoothing methods. The function was previously using the incorrect method (i.e., if you asked for method A you would get method B, and vice versa).
For details of all known issues which have been reported for the NAG Library please refer to the
Known Issues list.
The example program reads in a sequence of 49 data taken from
Tukey (1977), above. Results are obtained using the two smoothing methods described.