From: Jorge Pasquotto on
Dear all,
There are two approaches in updating forecasting models over time: the rolling and moving(sliding) window. The rolling window approach uses all available data to train neural networks while the moving window approach uses a set of most recent observations to estimate the model.
In summary:
rolling window = new observations are added to the training database. (fixed starting point, sample size increases)
moving window = add new observation, same time drops out the oldest observation. (fixed sample size).

The question is
How Matlab NEWELM function works with these different approaches???

regards
JP