The repainting TMA
In order to avoid that missing data, people have found out that it might be extrapolated (the missing data) and that is what is usually used as centered triangular moving average : TMA that is shifted by half length to the left and the missing data is extrapolated in a certain way. Here is how the usual centered TMA looks like :The gap from the right is filled in and it all looks just fine. Except that there is no 100% exact way of extrapolating data. So, that extrapolated gap is a subject of changes no matter what extrapolation method one uses (otherwise I would be drinking coffee with Warren Buffett in the morning and not in my kitchen).
There is no way to make the "Centered" TMA non-repainting. None ... So much about the wonders of centered triangular moving averages : it is a good tool for estimation, but in no way should it be used in "signaling" mode since the signals are going to change
