Mulakan

Ehlers

Signal to Noise Ratio [SNR]Intro This script measures the Signal to Noise ratio of a security and plots it in deciBels scale! Usage Ideally, you would want the ratio to be above 10 dB, meaning the Signal strength is 10x the noise strength. As a baseline, you should not rely on indicators that use any kind of moving average if the SNR is below 6 dB - meaning Signal strength is only 4x noise strength. I've written the SNR as a functional block so you may simply copy and paste, then call getSNR() to get the ratio in dB. Principle I consider a bar's High and Low to be the range of that period and (High + Low)/2 to be the "real" value of the signal. This script compares a bars range (noise) to the perceived signal using a Hilbert Transform. Cheers, DasanC
Penunjuk Pine Script™
oleh DasanC
5
Adaptive Zero Lag EMA [STUDY]A user has asked for the Study/Indicator version of this Strategy . If you encounter the error "loop....>100ms" simply toggle the eye icon to hide and unhide the indicator The following is simply quoted from my previous post for your convenience: (obviously there won't be risk, Stop Loss, or Take profit parameters!) OPERATING PRINCIPLE The strategy is based on Ehlers idea that any indicator can be turned into a signal-producing trade system through smoothing and other filtering processes. In fact, I'm using his Zero Lag EMA ( ZLEMA ) as a baseline indicator as well as some code snippets he has made public (1). God bless open source! Next, I've provided the option to use an Instantaneous Frequency Measurement (IFM) method, which will adaptively choose the best period for the ZLEMA (2) I've written other studies that use the differential calculus approximations for IFM, so it was only natural to include them in this strategy. The primary two are Cosine IFM (3) and In-phase Quadrature IFM (4). You can also find an indicator with both plotted and the ability to average them together, as one IFM prefers long periods and the other short. (5) BEFORE WE BEGIN 1. This strategy only runs on "normal" FX pairs ( EURUSD , GBPJPY , AUDUSD ...) and will fail on Metals or Commodities. Cryptos are largely untested. 2. Please run it on these time frames: M15 to D. Anything outside this range will likely fail. HOW TO USE AND SUCCEED 1. If the Default settings don't produce good results right off the bat, then lower gain limit to 1 or 2 and threshold to 0.01. 2. Test each setting under adaptive method. If you want to leave it Off, then I'd recommend using some kind of IFM (see my links below) to discover the most efficient period to use. 3. Once you have the best adaptive method chosen, begin incrementing gain limit until you find a nice balance between profit factor ( PF ) and drawdown. 4. Now, begin incrementing threshold. The goal is to have PF above 2 and a drawdown as low as possible. 5. Finally, change the source! Typically, close is the best option, but I have run into cases where high yielded the highest returns and win rate. 6. Sit back, relax, and tweak the risk until you're happy with the return and drawdown amounts. ADVANCED You may need to adjust take profit (TP) points and stop loss (SL) points to create the best entry possible. Don't be greedy! You'll likely have poor results if the TP is set to 300 and SL is 50. If you are trading a pair that has a long Dominant Cycle Period, then you may increase Max Period to allow the IFM to accept longer periods. Any period above the Max Period will be rejected. This may increase lag time! Cheers and good luck trading! -DasanC (1)www.mesasoftware.com (2)www.jamesgoulding.com (3) Cosine IFM (4) I-Q IFM (5) Averaging IFM IFM stands for Instantaneous frequency measurement
Penunjuk Pine Script™
oleh DasanC
3
Cosine, In-Phase & Quadrature IFM [Ehlers]Yet another method for determining the cycle of a market: this time, you have access to the two fastest and most accurate methods as well as the option to average these methods together. The controls are pretty straight forward: Source lets you select the price data to perform calculations on (close, open, etc..) Max Period is simply the cap for the algorithm when it's checking the validity of Periods. -> If you notice your plots have a flat top, then increase this value to accept a wider range of Periods. -> This setting has a min. value of 8 to reduce noise and a max of 100 to ignore waves from higher time frames. Average? simply averages the two methods of calculation. -> You may want to do this if you notice the two plots diverging a lot. -> Cosine IFM tends to favor shorter periods; I-Q IFM tends to favor longer. Cheers, - DasanC
Penunjuk Pine Script™
oleh DasanC
1
Adaptive Bandpass Filter [Ehlers]This is my latest bandpass filter - used to determine if a security is in a trend or cycle. Now with an adaptive period setting! I use Ehlers in-phase & quadrature dominant cycle measurement (IQ IFM) method to set the period dynamically. This method favors longer periods which tend to produce smoother, albeit laggier bandpass oscillator plots. From my quick tests, I tend to have lag between 4 and 8 bars, depending on the Timeframe. The lower timeframes tend to have more noise and thus produce more interfering frequencies that may cause lag. >Settings Source: Select the data source to perform calc's on (close, open, etc...) Period: Select the period to tune. Periods outside of this value will be attenuated (reduced) Adaptive: Enable to have the I-Q IFM set the period for you (disables Period setting) Bandpass Tolerance: Allow periods that are plus/minus the chosen period to pass. Cycle Tolerance: Sensitivity of cycle mode. Lower values consider trends more frequent, higher values consider cycles more frequent. Bandpass tolerance example: for instance, if this setting is 0.1 (10%) and Period is set to 20, then waves with a period of 18 - 22 will pass. >How to read Red line is the bandpass output, showing a lagged version of the dominant cycle representing the Black lines are the upper and lower bounds for a cycle Green Background indicates an uptrend Red background indicates a downtrend
Penunjuk Pine Script™
oleh DasanC
2
In-Phase & Quadrature IFMThis indicator provides a continuous measurement of a securities' dominant cycle period, based on Ehlers ever-impressive reports and analysis tools. This method uses in-phase and quadrature analysis, making use of the imaginary domain. This method is prone to favor longer periods and can allow noise to greatly affect the end result. >What does that even mean? Essentially, you get a real-time (low lag) plot of the cycle period in bars. If the I-Q IFM reads "16" then you can expect the distance between swing highs and swing lows to be approx. 16 bars. >How is this useful? When you throw an RSI or MACD on your chart, you can now set the "Period" or "Length" value with confidence. Knowing the dominant cycle period tells you that price reversal will occur around these intervals. >Extending. The better way to use this tool is by extending the script into any indicators that use a length or period that is set manually. Simply use the "len" variable in your custom script to replace your input values. Now you have a way to adaptively set the period value, using signal processing theory instead of just intuition ;) PM if you have questions.
Penunjuk Pine Script™
oleh DasanC
1
Cosine IFM [Ehlers]This indicator provides a continuous measurement of a securities' dominant cycle period, based on Ehlers ever-impressive reports and analysis tools. >What does that even mean? Essentially, you get a real-time (low lag) plot of the cycle period in bars. If the COS IFM reads "16" then you can expect the distance between swing highs and swing lows to be approx. 16 bars. >How is this useful? When you throw an RSI or MACD on your chart, you can now set the "Period" or "Length" value with confidence. Knowing the dominant cycle period tells you that price reversal will occur around these intervals. >Extending. The better way to use this tool is by extending the script into any indicators that use a length or period that is set manually. Simply use the "len" variable in your custom script to replace your input values. Now you have a way to adaptively set the period value, using signal processing theory instead of just intuition ;) PM if you have questions.
Penunjuk Pine Script™
oleh DasanC
2
MAMA by EHLERSMESA Adaptive Moving Average aka: Mother of Adaptive Moving Averages: The MESA Adaptive Moving Average ( MAMA ) adapts to price movement in an entirely new and unique way. The adapation is based on the rate change of phase as measured by the Hilbert Transform Discriminator I have previously described.1 The advantage of this method of adaptation is that it features a fast attack average and a slow decay average so that composite average rapidly ratchets behind price changes and holds the average value until the next ratchet occurs. The action of MAMA is shown in Figure 1. Since the average fallback is slow I can build trading systems that are virtually free of whipsaw trades. For detailed information of MAMA: (creators' PDF document) www.mesasoftware.com Long condition: when MAMA Crosses over FAMA (Following Adaptive Moving Average ) Short condition: when FAMA Crosses over MAMA (Personally modified LazyBear's version which was originally calculated in degrees instead of radian by applying explanations in the MESA pdf document.http://www.mesasoftware.com/papers/MAMA.pdf) Creator: John EHLERS
Penunjuk Pine Script™
oleh KivancOzbilgic
9
Missile RSI (RSI of momentum w/ Dominant Cycle length + Fisher)This is a predictive indicator that looks for explosions in momentum of the cycles in price and large shifts in Momentum (Fisher turns the Bimodal PDF into Guassian like) as statistically unlikely events, showing points to exit or reverse positions. You can adjust the lowpass frequency cuttoff (Aka what cycles you want to remove from the calculations through the super smoother filter). To be honest you can monkey trade the direction of the Signal if you'd like but the Divergences and Maxing of the values is whats most useful. Let me know if you guys want me to add anything else.
Penunjuk Pine Script™
oleh anoojpatel
Ehlers FilterThis is the Adaptive Ehlers Filter. I had to unroll the for loops and array because TV is missing crucial data structures and data conversions (Arrays and series to integer conversion for values). I'm in the process of releasing some scripts. This is a very old script I had. This contains volatility ranges and can be used as trading signals. You can also see how the EF moves up or down, the direction, when price is sideways, and use price breaks up and down as signals from the line. Have fun, because I didn't making this script hahaha NOTE : There is an issue with the script where at certain time frames it positions itself below or above. I think its due to calculations. If anyone knows the fix before I get the chance to take a look at it, please let me know. books.google.com
Penunjuk Pine Script™
oleh anoojpatel