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ROC

Decaying Rate of Change Non Linear FilterThis is a potential solution to dealing with the inherent lag in most filters especially with instruments such as BTC and the effects of long periods of low volatility followed by massive volatility spikes as well as whipsaws/barts etc. We can try and solve these issues in a number of ways, adaptive lengths, dynamic weighting etc. This filter uses a non linear weighting combined with an exponential decay rate. With the non linear weighting the filter can become very responsive to sudden volatility spikes. We can use a short length absolute rate of change as a method to improve weighting of relative high volatility. c1 = abs(close - close ) / close Which gives us a fairly simple filter : filter = sum(c1 * close,periods) / sum(c1,periods) At this point if we want to control the relative magnitude of the ROC coefficients we can do so by raising it to a power. c2 = pow(c1, x) Where x approaches zero the coefficient approaches 1 or a linear filter. At x = 1 we have an unmodified coefficient and higher values increase the relative magnitude of the response. As an extreme example with x = 10 we effectively isolate the highest ROC candle within the window (which has some novel support resistance horizontals as those closes are often important). This controls the degree of responsiveness, so we can magnify the responsiveness, but with the trade off of overshoot/persistence. So now we have the problem whereby that a highly weighted data point from a high volatility event persists within the filter window. And to a possibly extreme degree, if a reversal occurs we get a potentially large "overshoot" and in a way actually induced a large amount of lag for future price action. This filter compensates for this effect by exponentially decaying the abs(ROC) coefficient over time, so as a high volatility event passes through the filter window it receives exponentially less weighting allowing more recent prices to receive a higher relative weighting than they would have. c3 = c2 * pow(1 - percent_decay, periods_back) This is somewhat similar to an EMA, however with an EMA being recursive that event will persist forever (to some degree) in the calculation. Here we are using a fixed window, so once the event is behind the window it's completely removed from the calculation I've added Ehler's Super Smoother as an optional smoothing function as some highly non linear settings benefit from smoothing. I can't remember where I got the original SS code snippet, so if you recognize it as yours msg me and I'll link you here.
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rumpypumpydumpy tarafından
3
Function To Candles - Another way to see indicatorsIntroduction There are different and better way's to see price data, a candlestick chart is one of the best way to see the price since you have access to the open/high/low/close information, this is really efficient and can allow for naked non parametric trading strategies (candlesticks patterns) . But what about making candles out of indicators ? There are tons of studies about candlesticks patterns in price data but none (?) about candlestick patterns using indicator data, therefore i made this script in order to show candles from various indicators, i also made an heikin-ashi mode. Rsi To Candles All the indicators are use the open/high/low/close price as input in order to return candles. length control the indicator period. Stochastic To Candles The stochastic oscillator is restrained in a range of 0/100, therefore when equal to 0 or 100 the candles can be flat. Rate Of Change To Candles The rate of change don't distort price as heavily as other indicators since its based on differencing. Center Of Gravity To Candles The center of gravity (cog) is defined from tradingview as "an indicator based on statistics and the Fibonacci golden ratio", its not an indicator i'am familiar with and i don't know if its the same proposed by Elhers. The candles are smooth, high length can flatten the candles heavily making them hard to see. Correlation Oscillator In a range of -1/1 this indicator is quite smooth and can also flatten candles. Patterns And Heikin-Ashi There are tons of patterns that can be generated from candlesticks, they can be applied to this indicator as well. The indicator can show an heikin-ashi mode, heikin-ashi candlestick use averaging to plot candles, this is why they appear smoother, some signals generated from heikin-ashi candles are : Bullish body with no lower shadows = Strong Uptrend Bearish body with no higher shadows = Strong Downtrend High range and small body = Indecision/Risk of reversal Conclusion I made an indicator able to draw candles from other indicators, those candles contain various information that can generate decision from patterns. I hope you find a use to it, if its the case share your findings with me, maybe that you will even be able find a new candlestick pattern :) Thanks for reading !
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alexgrover tarafından
17
[RESEARCH] Rate of ChangeHello traders and developers! I was wondering how built-in "roc" function in Pine is defined and calculated so I made a little research. I examined 4 samples: 1) "roc" function itself 2) "roc" according to its description 3) price change ratio 4) price percent change ratio The results of the first and fourth samples are identical. So, TV built-in roc(source, length) = 100 * change(source, length) / source . And it's description is incorrect. If you didnt know it - now you know it. Good luck!
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everget tarafından
2
RSI based on ROC Backtest This is the new-age indicator which is version of RSI calculated upon the Rate-of-change indicator. The name "Relative Strength Index" is slightly misleading as the RSI does not compare the relative strength of two securities, but rather the internal strength of a single security. A more appropriate name might be "Internal Strength Index." Relative strength charts that compare two market indices, which are often referred to as Comparative Relative Strength. And in its turn, the Rate-of-Change ("ROC") indicator displays the difference between the current price and the price x-time periods ago. The difference can be displayed in either points or as a percentage. The Momentum indicator displays the same information, but expresses it as a ratio. You can change long to short in the Input Settings WARNING: - For purpose educate only - This script to change bars colors.
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HPotter tarafından
RSI based on ROC Strategy This is the new-age indicator which is version of RSI calculated upon the Rate-of-change indicator. The name "Relative Strength Index" is slightly misleading as the RSI does not compare the relative strength of two securities, but rather the internal strength of a single security. A more appropriate name might be "Internal Strength Index." Relative strength charts that compare two market indices, which are often referred to as Comparative Relative Strength. And in its turn, the Rate-of-Change ("ROC") indicator displays the difference between the current price and the price x-time periods ago. The difference can be displayed in either points or as a percentage. The Momentum indicator displays the same information, but expresses it as a ratio. WARNING: - This script to change bars colors.
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HPotter tarafından
Forex strength meterCalculates the strength of a particular currency taking into account it's rate of change (% price change in a period) in all correlated and anti-correlated pairs. For instance, when looking for USD strength we will add ROC for USDCAD, USDCHF and USDJPY while subtract AUDUSD, EURUSD, GBPUSD and NZDUSD. After ROC step, one can smooth the result using EMA, or MACD. As the script needs to fetch values from multiple currencies it isn't the fastest one, but it gets its job done. Important: Only major currencies (AUD, CAD, CHF, EUR, GBP, JPY, NZD and USD) are considered.
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red1939 tarafından
1
ROC TideAdds some depth to the traditional rate of change (ROC) indicator. Instead of just having one ROC line with a single lookback period, this takes a minimum lookback period, n , and plots 20 ROC lines with lookback periods of n, 2n, 3n, ..., 20n . These lines will appear green when greater than zero, red when less than zero, and yellow when equal to zero by default. Then it plots the average of those 20 ROC's as a yellow filled area so as to make it easier to see where the balance (or "tide") of the ROC waves are located.
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JacobAmos tarafından
4
GBPNZD ROC RF count strategyCode takes six pairs that are highly correlated to GBPNZD and determines if their ROC's are increasing or decreasing. If a pair has an increasing ROC it is given a 1, if decreasing a -1. The numbers are all added up (this is similar to a count for counting cards in blackjack). If the count goes positive the strategy enters a long position, if negative a short position. Code is tuned for GBPNZD for 1HR chart. Returns $97 on an initial balance of $100 (if I am reading Tradingview Tester correctly) *** Should work for GBPJPY, its has the same correlated pairs Comments welcomed
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forexpirate tarafından
2
JPY GBP ROCsRate of change of most volatile JPY and GBP pairs. All pairs ending in JPY are red except GBPJPY (colored yellow --currently most volatile 7/2016). GBPNZD is blue, the other GBP pairs are green, lime and teal. GBPJPY and GBPNZD are my favorite day trading / swing trading pairs. This script allows me to see the action of the most volatile and liquid pairs on one screen. JPY pairs (ex-GBPJPY) are all red so that I see the flow of JPY not so much each pair and its name. Global movement of JPY is what I am after. Same for the coloring of GBP pairs as green expect GBPNZD as blue. ***** EURGBP is plotted as an opposite (with a negative in front of its sma. EURGBP is extremely correlated to GBPNZD, I decided to plot it also.
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forexpirate tarafından
2
BUY & SELL PRESSURE by RegressionBUY & SELL PRESSURE by Regression Analysis at candle price/volume (Rate-Of-Change) Ver. 3 By Ricardo M Arjona @XeL_Arjona DISCLAIMER: The Following indicator/code IS NOT intended to be a formal investment advice or recommendation by the author, nor should be construed as such. Users will be fully responsible by their use regarding their own trading vehicles/assets. The embedded code and ideas within this work are FREELY AND PUBLICLY available on the Web for NON LUCRATIVE ACTIVITIES and must remain as is. WHAT'S THIS? This is my 3rd. revision of the original implementation for AmiBroker by Karthik Marar's of it's BUY AND SELL PRESSURE INDICATORS but this time, constructed under a complete REGRESSIVE ANALYSIS premise based in Rate Of Change (A kind of Slope but measured in % Performance). Some minimal adaptation's (and cleaning) have been made: Instead of simple Range calculation at price, Rate Of Change (Regressive) is used. Oscillator of Pressure can be deactivated in favor of a simple RoC Cumulative Pressures at candle. Oscillator can read Volume data from external tickers for accurate Index calculation. ( NYA can use TVOL as example.) Code is small, cleaner and faster =) ! Cheers! Any feedback will be welcome... @XeL_Arjona
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xel_arjona tarafından
2