Ehlers Filter Distance Coeff
Ehlers Filter Distance Coeff (EFDC) was authored, not surprisingly, by John Ehlers. The EFDC uses current prices, prior prices and their difference over a time period to calculate its value. The user may change the input (close) and period length. This indicator’s definition is further expressed in the condensed code given in the calculation below.
How To Trade Using Ehlers Filter Distance Coeff
Ehlers Filter Distance Coeff is a trend indicator and may be used in conjunction with other studies. No trading signals are calculated.
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Go to the top menu, choose Study>John Ehlers>Ehlers Filter Distance Coeff
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//input = price, user defined, default is closing price
//period = p1 = user defined, default is 20
index = current bar number, LOE = less or equal
iprice = 0, priorP = 0, num = 0, sumC = 0, filt = 0; coef = new [p1]; d2 = new [p1]; count = 0; for(i = index - (p1-1); i LOE index; i++) d2[count] = 0; iprice = price[i]; for( lb = 1; lb lessThan p1; lb++) priorP = price[i-lb]; d2[count] = d2[count] + (iprice - priorP) * (iprice - priorP); endFor coef[count] = d2[count]; count++; endFor count = 0; for(i = index - (p1-1); i LOE index; i++) iprice = price[i]; num = num + coef[count] * iprice; sumC = sumC + coef[count]; count++; endFor if (sumC != 0) filt = num / sumC; Plot: filt