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I have no idea what you mean about with extremes/highs/lows, post up a drawing like I did so we know what you're talking about...
Please try to understand the following:
The forecast array has 12 columns. For the sake of argument, if each column had a turning point, what would the predictive value of it?
Zero.
If on the other hand, a forecast array had only a single turning point in it, then that would be something. But it would still be of a low value because it can be interpreted as both a low or a high.
The fact is that forecast arrays typically have more than one turning point, in fact many turning points, so the predictive value is low due to the resulting ambiguity.
Martin Armstrong is a charlatan, and he spent 11 years in jail for that reason but he has not changed.
Read this blog
starting at page 273 to find out more about computerized fraud.
See
armstrongecmscam.blogspot.com for a more compact view of major findings posted in this blog.