Quote from RoughTrader:
This is an issue I've been dealing with on the charts.
sample2.gif shows price in a trend with a very angular retracement. This type of price action is very ideal because, alongside the gaussians, the geometry is very easy to tape because of the clear cusps at the tape changes.
sample1.gif shows a similar kind of trend, but the retracement is very sinusoidal in nature. The up to down tape transition happens on light pace, but the pace quickens (slope steepens) to a maximum at the center of the retrace. The pace slows again as the price progresses back into the dominant traverse.
The initial tape lines of sample1.gif are drawn. We can see how the pace increase in the retrace causes the bars to gap away from the RTL of the tape. Obviously, this is because the tape is drawn from the first two bars of the retrace that have the lightest slope.
One solution is to keep widening the tape until the RTL is broken. My approach however, is to observe each incoming bar. If the pace quickens with that bar, I rotate the RTL (in this case clockwise) so that the tape has the deepest slope (sample3.gif). If the following violates the RTL, I keep the tape in place and wait for a stall or a tape in the opposite direction.
This enables me to catch the earliest shift from traverse to traverse. If the tape had bee successively widened, then the tape violation could occur well into the next traverse.
Any thoughts, comments on what you guys do about these tape pace changes?
RT