+ ATR Support and ResistanceThis, a very different script from most of mine, is my attempt at making a useful, and not messy, support and resistance indicator. If you've never looked into trader xkavalis, and his scripts and discord, I would highly recommend it. He talks about "pay attention candles" a lot. It got me thinking about what those are. Best as I can tell all he means by that phrase is large, impulsive candles. Sometimes these lead to break outs of ranges, or they may signal tops, bottoms, or near-tops and bottoms. The only way I could make sense of this in a mathematical way was by using the average true range. Basically, any candle's true range outside of the ATR is considered a "pay attention candle," by my definition.
This script originally began as just a candle coloring exercise with some optional shapes plotted above/below certain candles, but I quickly realized I wanted to draw lines or zones from these candles, so eventually, after many hours spent figuring out and learning 'line.new' and 'box.new' I got things sorted.
Essentially, my line of thinking is that on impulsive candles down, the origin of the impulse is more important than the close (not always of course, as there are no unbreakable rules in what markets can do), and with impulsive candles up, the same theory applies.
So, for upward impulsive candles I've marked out the zone from the open to the low as a support (until broken, in which case it may become resistance). For downward impulsive candles the zone encompasses the open to the high. I've given the option to plot a line from the close for all of these. It's turned off by default as it's just less stuff on the chart, but you may like it.
The line length is customizable in a menu. It does funny things on low timeframes on forex and stock charts (long lines that result in chart compression), but for some reason very rarely on crypto charts. If someone who is smart (not me) and has much experience with pinescript could perhaps help me out with a fix for this, that would be great. I suspect it has something to do with my "bar_index_duration" that I defined using the time function, but I'm not sure how or why.
Line length on time frames of one hour and up it is typically fine.
Use the ATR multiple to change the sensitivity of the indicator. This is basically the determination of when a candle is beyond the ATR. A multiple of two is two times the ATR. With lower volatile pairs you can maybe make this lower. On lower time frames or with more volatile pairs (illiquid alts in particular) a higher multiple might serve better. I find the default 1.75 is mostly acceptable.
As I started this I also thought adding some sort of volume information to the candles might be useful as well, so I added a simple candle coloring feature referencing the OBV and a 21 period EMA. Candles are colored based on the OBV's relation to its moving average.
I added some plot shapes and candle coloring utilizing the RSI as well. Options to turn on or off shapes plotted for overbought and oversold across the top of the chart. The most interesting feature that I implemented here is a support/resistance zone around the centerline of the RSI. If the RSI is between 49 and 51 then you can have optional candle coloring, shapes plotted above the candles, and s/r zones drawn on the chart. In trending markets the centerline of the RSI will frequetly act as support or resistance, so by being alerted of this condition on the chart you can use that with actual levels marked off in order to help make a judgement on a trade. I think it's a nice addition, and an oft overlooked aspect of the usefulness of the RSI.
I've also included a calculation, with candle coloring and/or plot shapes, for something like a stop run on high volume. The calculation for that is in its section below, and should be pretty self explanatory.
Lastly, typing this as I'm posting it, this indicator could also be useful for helping to find placement for trailing a stop. Just a thought!
