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    Combine decomposed forecast with a Holt-winter forecast

    I just want to know, can i combine a decomposed forecast with any other non-decomposed forecast like holt-winter and is there any reference to someone who did something like this before? I don't see a problem with it, but i would like an opinion from someone else. The new combined...
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    Fix holes in the sales history for forecast preperation

    I have to forecast about +/- 700 products for my company and I am planning on using some kind of smoothing method like Holt-Winter. The problem i have, is that the history has "holes" in it, meaning there are dips in the sales history due to out of stock situations. Before i can calculate a...