Calculating Triangular Moving Average with Fold function

[amirfutures]

The formula of Moving Average Triangular is:

input price = close;
input length = 9;
input displace = 0;

def effectiveLength = Ceil((length + 1) / 2);
plot AvgTri = Average(Average(price[-displace], effectiveLength), effectiveLength);

##########################################################################################

I would like to replace the "Average" function with an average that is calculated with Fold function, as follows:

input price = close;
input length = 9;
plot SMA = (fold n = 0 to length with s do s + getValue(price, n, length - 1)) / length;

The end result should look like:

input price = close;
input length = 9;
input displace = 0;

def effectiveLength = Ceil((length + 1) / 2);
plot AvgTri = SMA(SMA(price[-displace], effectiveLength), effectiveLength);

Thanks

 

[SleepyZ]

The formula of Moving Average Triangular is:

input price = close;
input length = 9;
input displace = 0;

def effectiveLength = Ceil((length + 1) / 2);
plot AvgTri = Average(Average(price[-displace], effectiveLength), effectiveLength);

##########################################################################################

I would like to replace the "Average" function with an average that is calculated with Fold function, as follows:

input price = close;
input length = 9;
plot SMA = (fold n = 0 to length with s do s + getValue(price, n, length - 1)) / length;

The end result should look like:

input price = close;
input length = 9;
input displace = 0;

def effectiveLength = Ceil((length + 1) / 2);
plot AvgTri = SMA(SMA(price[-displace], effectiveLength), effectiveLength);

Thanks

Creating SMA using the script function seems to work

script sma{
input price = close;
input length = 9;
plot SMA = (fold n = 0 to length with s do s + getValue(price, n, length - 1)) / length;
}
#The end result should look like:

input price = close;
input length = 9;
input displace = 0;

def effectiveLength = Ceil((length + 1) / 2);
plot AvgTri = SMA(SMA(price[-displace], effectiveLength), effectiveLength);