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How To Color Prior BarsExample how to color the trigger bar of the condition and n-1 prior bars using only 1 barcolor() function.
Currently when offsets are used in barcolor(), bgcolor(), plot(), plotarrow(), plotchar(), or plotshape(), the offset only works with a simple (static) integer. If series (dynamic) integers are used instead, there is not an error, but the series values are ignored. Because of this limitation of offset being constrained to using only fixed offsets, the normal way to paint 3 Black Crows would be to use 3 barcolor() functions. Since there are a known number of bars to be painted in that scenario, this can be easily accomplished.
If a condition encompassed a variable length of n bars, then the number of barcolor() functions needed to use would be unknown. How to color the trigger bar of the condition and n-1 prior bars using only 1 barcolor() function? Dual examples below solves issue but requires n "future" bars, because of this it will not paint the most recent condition in realtime and may not be applicable for use in certain realtime situations. It paints similar in behavior to how a pivot does. Special thanks to LucF and RicardoSantos for illumination!
NOTICE: This is an example script and not meant to be used as an actual strategy. By using this script or any portion thereof, you acknowledge that you have read and understood that this is for research purposes only and I am not responsible for any financial losses you may incur by using this script! Indicator
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How To Use Dynamic ZonesExample of how to apply and use Dynamic Zones with an indicator by injecting it's source into my adaptation of the original idea by Leo Zamansky, Ph.D., and David Stendahl.
• Load your desired oscillating indicator on your chart (CCI, RSI, etc).
• Load my "How To Use Dynamic Zones" indicator on your chart.
• In the "How To Use Dynamic Zones" indicator settings choose your desired oscillating indicator as the Oscillator Source.
You will now have dynamic overbought and oversold levels. I have also included alerts which may be used to indicate when these conditions occur.
If desired you may repeat the above process by loading additional indicators along with additional copies of my indicator to use with each oscillator.
Oscillator Source: CLOSE uses your chosen indicator as a source or you may use price as a source
Sample Length: 70 uses number of previous values for evaluating
Hi is Above X% of Sample: 88 sets overbought zone
Lo is Below X% of Sample: 88 sets oversold zone
The simplest explanation of what these default settings are doing is that they take 70 previous values of your chosen indicator, then create an overbought level that is above 88% of those previous values and an oversold level that is below 88% of those previous values. As new bars form the levels are dynamically reevaluated and updated.
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"This investing style follows a very simple form of logic: Enter the market only when an oscillator has moved far above or below traditional trading levels. However, these oscillator driven systems lack the ability to evolve with the market because they use fixed buy and sell zones. Traders typically use one set of buy and sell zones for a bull market and substantially different zones for a bear market. And therein lies the problem.
Once traders begin introducing their market opinions into trading equations, by changing the zones, they negate the system’s mechanical nature. The objective is to have a system automatically define its own buy and sell zones and thereby profitably trade in any market — bull or bear. Dynamic zones offer a solution to the problem of fixed buy and sell zones for any oscillator-driven system."
Reference: Stocks & Commodities V15:7 (306-310): Dynamic Zones by Leo Zamansky, Ph.D., and David Stendahl
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NOTICE: This is an example script and not meant to be used as an actual strategy. By using this script or any portion thereof, you acknowledge that you have read and understood that this is for research purposes only and I am not responsible for any financial losses you may incur by using this script!
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Pinescript v3 Compatibility Framework (v4 Migration Tool)Pinescript v3 Compatibility Framework (v4 Migration Tool)
This code makes most v3 scripts work in v4 with only a few minor changes below. Place the framework code before the first input statement.
You can totally delete all comments.
Pros:
- to port to v4 you only need to make a few simple changes, not affecting the core v3 code functionality
Cons:
- without #include - large redundant code block, but can be reduced as needed
- no proper syntax highlighting, intellisence for substitute constant names
Make the following changes in v3 script:
1. standard types can't be var names, color_transp can't be in a function, rename in v3 script:
color() => color.new()
bool => bool_
integer => integer_
float => float_
string => string_
2. init na requires explicit type declaration
float a = na
color col = na
3. persistent var init (optional):
s = na
s := nz(s , s) // or s := na(s ) ? 0 : s
// can be replaced with var s
var s = 0
s := s + 1
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Key features of Pinescript v4 (FYI):
1. optional explicit type declaration/conversion (you still can't cast series to int)
float s
2. persistent var modifier
var s
var float s
3. string series - persistent strings now can be used in cond and output to screen dynamically
4. label and line objects
- can be dynamically created, deleted, modified using get/set functions, moved before/after the current bar
- can be in if or a function unlike plot
- max limit: 50-55 label, and 50-55 line drawing objects in addition to already existing plots - both not affected by max plot outputs 64
- can only be used in the main chart
- can serve as the only output function - at least one is required: plot, barcolor, line, label etc.
- dynamic var values (including strings) can be output to screen as text using label.new and to_string
str = close >= open ? "up" : "down"
label.new(bar_index, high, text=str)
col = close >= open ? color.green : color.red
label.new(bar_index, na, "close = " + tostring(close), color=col, textcolor=color.white, style=label.style_labeldown, yloc=yloc.abovebar)
// create new objects, delete old ones
l = line.new(bar_index, high, bar_index , low , width=4)
line.delete(l )
// free object buffer by deleting old objects first, then create new ones
var l = na
line.delete(l)
l = line.new(bar_index, high, bar_index , low , width=4)
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