Setting Arguments using VarFun & RSIndex

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david crowley
david crowley on 3 Apr 2021
Answered: Kartik Saxena on 23 Feb 2024
Due to the layout of my timetable data, I am required to use the following code when trying to calculate the rsindex():
%Set RSI lookback period
n = 5;
%calculate indicator
func = @rsindex;
RSI = varfun(func,Close);
RSI.Properties.VariableNames = codes;
Is there a way (what is the syntax) to set the WindowSize to 'n' when using varfun() to call rsindex()?

Answers (1)

Kartik Saxena
Kartik Saxena on 23 Feb 2024
Hi,
Refer to the following code snippet to get an idea of how to do s:
% Set RSI lookback period
n = 5;
% Define the rsindex function
rsindex = @(x) rsi(x, n); % replace 'rsi' with the actual implementation of the rsindex function
% Calculate indicator using varfun with WindowSize set to n
RSI = varfun(@(x) rsindex(x), Close);
RSI.Properties.VariableNames = codes;
Change the functions and arguments as per your requirements.

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