I can't seem to edit my previous post. I just wanted to add that I too would be interested in a trainer's answer to this question. I'd like to upgrade to Platinum in order to take advantage of real time quotes and scans/alerts in lower time frames, but I'm not satisfied with the alert system the way it is and would like an answer as to why it doesn't seem to trigger when it needs to.

Do the alerts only trigger after a candle is closed, for instance?

Can you be specific about what you've tried and what isn't working? I stopped using TC2000 alerts because they seemed to trigger arbitrarily. When you're using alerts on an intraday basis, getting a chime a good half hour after the alert should have been triggered does no good.

Hi there,

I've been using bollinger bands to create the relative definitions of overbought/oversold for RSI. It appears to be more adaptable than creating OS/OB readings by using some fixed number and moving it around manually for different time scales/markets. Bollinger provided a set of parameters for different indicators that he found, through testing, worked the best to define appropriate band widths. I've been using his recommendations and intend to continue doing so until I get enough data from personal use to warrant changing them.

Since a very high or low MACD can also indicate reversals, it would make sense to do something similar if using the MACD. However, Bollinger provided no recommendations for that particular indicator. Has anyone been using bollinger bands on their MACDs? If so, what parameters have you found give the best overall results?

Thank you Bruce, much obliged!

As for the error in the formula, I was obtaining hits on my scan with BBwidth greater than my indicated value and didn't know why. Thank you for pointing out that fundamental error.

If I end up writing a script to generate my condition, I will be sure to link it here.

Hello there,

I'd like to set up a scan to look for possible *relative* squeeze conditions, which is to say, a Bollinger BandWidth that is some fraction (1/2, 1/4, etc: ) of the average Bollinger BandWidth over the last N (eg. 20, 60, 180) days, or even simply the minimum over the past N days as recommended by Bollinger.

I have the following formula for the BBwidth already (directly from Bollinger on Bollinger Bands):

(4*SQR(((C1 - AvgC20)^2 + (C2 - AvgC20)^2 + (C3 - AvgC20)^2 + (C4 - AvgC20)^2 + (C5 - AvgC20)^2 + (C6 - AvgC20)^2 + (C7 - AvgC20)^2 + (C8 - AvgC20)^2 + (C9 - AvgC20)^2 + (C10 - AvgC20)^2 + (C11 - AvgC20)^2 + (C12 - AvgC20)^2 + (C13 - AvgC20)^2 + (C14 - AvgC20)^2 + (C15 - AvgC20)^2 + (C16 - AvgC20)^2 + (C17 - AvgC20)^2 + (C18 - AvgC20)^2 + (C19 - AvgC20)^2 + (C20 - AvgC20)^2)/20))/(AvgC20)

I can turn that into a condition by saying "< 0.04" or whatnot, but of course, i would like to replace that 0.04 with something like "0.5*Avg(BBwidth)20"

Now, I can do a moving average on the Bollinger BandWidth clip, and you can do moving averages on custom indicator charts, so the system is capable of this. Since I can&#39;t put multiple operators into the AVG() function nor define my own variables/functions, I can&#39;t figure out how to turn that into a condition unless I manually, painstakingly define BBwidth inside the PCF for each and every single day I want to include in the calculation with no way of referring to the "previous N days" in a programmatic manner. 

I&#39;m considering writing a Python script to generate that code, but before I resort to that, is there any shorthand way to do what I&#39;m trying to do?

Standard deviation is not strictly linear, so I&#39;m not a big fan of attempting to distribute the avg operation (though of course any help with this to simplify the resulting equation would be most welcome).

Thank you kindly.