Good morning everyone
I saw a pairs trading webinar on the topic and found this code.
I can not understand these two pieces of code, anyone is kind enough to explain
% The strategy:
******** % 1 Compute residuals over next N days
******** res = series2 (i: i + N-1, 1) ...
************ - (Reg1.coeff (1) + reg1.coeff (2). * Series2 (i: i + N-1, 2));
% 2 If the residuals are large and positive, then the first series
******** % Is Likely to decline vs. the second series. Short the first
******** % Series by a scaled number of shares and long the second series by
******** 1% share. If the residuals are large and negative, do the
******** % Opposite.
******** indicated (i: i + N-1) = res / reg1.RMSE;
********
******** s (i: i + N-1, 2) = (res / reg1.RMSE> spread) ...
************ - (Res / reg1.RMSE