BB Squeeze (by Andy)

Comments and suggestions welcomed.
By working out the width of the bands (squeezing or expanding) we get a good indication of impending price movement, or a chnge in short-term trend.
If we then look at the rate of change in this width, sharper variations (such as a steep rise or fall) generally mean a breakout.
By plotting this rate of change (red line) along with an historical band width value (yellow line), we can see when they crossover, a trend becomes reality.
Although this script should honour a 120 bar moving average (to determine the general trend - ensuring we're not going long when the price is declining) this isn't working in this version. I've plotted that MA on the chart so we can choose not to go long if the trend is going in the wrong direction.
Obviously the next step is to apply the same logic to a declining trend, when the crossover happens in the opposite direction.
Comments and suggestions are welcomed!
1min chart: Bollinger days set between 10-16
15min chart: Bollinger days set between 5-10
1hr chart: Bollinger days set between 20-30
The reality is we really want our bollinger days to be as high as possible, because it results in fewer trades following larger trends. I'll do some more testing and see why the numbers give the best results and report back with the next update.
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Disclaimer
Invite-only script
Only users approved by the author can access this script. You'll need to request and get permission to use it. This is typically granted after payment. For more details, follow the author's instructions below or contact andrejsliepinieks directly.
TradingView does NOT recommend paying for or using a script unless you fully trust its author and understand how it works. You may also find free, open-source alternatives in our community scripts.
Author's instructions
Warning: please read our guide for invite-only scripts before requesting access.