Moving Average Extension

[dbenz45]

What I am looking for is a Hurst Channel Indicator to be made in TOS.
I am looking for an indicator that will have 3 simple moving averages calculated based on the closing price of a stock to be displayed on the chart. These simple moving averages are displaced into the past by half the moving average number selected. There is the first moving average which is simply a moving average displaced into the past by half its length; then the other 2 moving averages: one is displaced vertically upwards and one is displaced vertically downwards by the same distance, these other two moving averages form a channel around the stock price and these other two moving averages use the first moving average as the centerline of the channel.

the trick is not doing a moving average with bands around it like Bollinger bands or Keltner channels because these don't enforce a constant vertical channel width
then the real trick is getting dotted lines to start where the simple moving averages left off (keep in mind these moving averages end before the most recent bar because they are displaced into the past) and project a potential channel continuation with same slope and same curvature projected forward to the present day and beyond into the future by half the number of bars selected for the moving average. The distance between the moving average in the middle the upper and lower bounds of the channel is not only must it be constant vertical width, but the channels must contain most of the price data, if the vertical width has to be changed significantly to incorporate an outlying price bar then don't widen the channel just for a few price points on the chart. then the last final touch is allow for adjustment of a smoothing factor of the moving average projections if desired. I have made a few stabs at this and still working on it. Any help would be greatly appreciated! And obviously will benefit anyone else who wants to tryout Hurst Channels in TOS!!

 

[dbenz45]

I use moving averages frequently that I displace into the past, can anyone help me add some code to add a moving average extension line? I have a code that plots 3 vertically displaced moving averages to form a price envelope, what i am hoping is to have extension lines plotted as hypothetical future extensions of the moving averages if they continued their present slope and curvature, this should be able to be done by taking a moving average of the last 2 points on a moving average and extending that into the future, here is a code I found on here, but when I try and displace these moving averages into the past, the code no longer will plot an extension, any ideas? (this code works, just looking for a way to displace the MA into the past with the extension line still being able to work and be plotted on the chart.

input MAlength = 20;
input AvgType = AverageType.SIMPLE;
input price = close;

plot moveavg = MovingAverage(AvgType, price, MAlength);
moveavg.SetDefaultColor(CreateColor(0, 255, 0));
moveavg.SetLineWeight(1);

def inertline = inertiaall(moveavg,2);
def EXT_MA = if !IsNaN(close()) then inertline else EXT_MA[1] + ((EXT_MA[1] - EXT_MA[2]) / (2 - 1));

input extension_length_limited_to = 20;
def lastbar = if isnan(close[-1]) and !isnan(close) then barnumber() else double.nan;

plot extension = if barnumber()<=highestall(lastbar)+ extension_length_limited_to then EXT_MA else double.nan;
extension.SetDefaultColor(CreateColor(0, 255, 255));
extension.SetLineWeight(1);

 

[SleepyZ]

I use moving averages frequently that I displace into the past, can anyone help me add some code to add a moving average extension line? I have a code that plots 3 vertically displaced moving averages to form a price envelope, what i am hoping is to have extension lines plotted as hypothetical future extensions of the moving averages if they continued their present slope and curvature, this should be able to be done by taking a moving average of the last 2 points on a moving average and extending that into the future, here is a code I found on here, but when I try and displace these moving averages into the past, the code no longer will plot an extension, any ideas? (this code works, just looking for a way to displace the MA into the past with the extension line still being able to work and be plotted on the chart.

input MAlength = 20;
input AvgType = AverageType.SIMPLE;
input price = close;

plot moveavg = MovingAverage(AvgType, price, MAlength);
moveavg.SetDefaultColor(CreateColor(0, 255, 0));
moveavg.SetLineWeight(1);

def inertline = inertiaall(moveavg,2);
def EXT_MA = if !IsNaN(close()) then inertline else EXT_MA[1] + ((EXT_MA[1] - EXT_MA[2]) / (2 - 1));

input extension_length_limited_to = 20;
def lastbar = if isnan(close[-1]) and !isnan(close) then barnumber() else double.nan;

plot extension = if barnumber()<=highestall(lastbar)+ extension_length_limited_to then EXT_MA else double.nan;
extension.SetDefaultColor(CreateColor(0, 255, 255));
extension.SetLineWeight(1);

See if this helps

#MovingAverage_Extended

input MAlength = 20;
input AvgType = AverageType.SIMPLE;
input price = close;

def MA = if !IsNaN(close())
         then MovingAverage(AvgType, price, malength)
         else MA[1] + ((MA[1] - MA[malength]) / (malength - 1));

plot moveavg = MA;
moveavg.SetDefaultColor(CreateColor(0, 255, 0));
moveavg.SetLineWeight(1);

 

[dbenz45]

See if this helps

this is a start, but i cant displace this into the past still

 

[SleepyZ]

this is a start, but i cant displace this into the past still

See if the code below is what you want. The image shows the extended MA displaced and the non-displaced MA (dashes).

#MovingAverage_Extended

input displace = 30;
input MAlength = 20;
input AvgType = AverageType.SIMPLE;
input price = close;

def MA = if !IsNaN(close())
         then MovingAverage(AvgType, price, malength)
         else MA[1] + ((MA[1] - MA[malength]) / (malength - 1));

plot moveavg = MA[-displace];
moveavg.SetDefaultColor(CreateColor(0, 255, 0));
moveavg.SetLineWeight(1);