This script was written to calculate the correlation coefficient (Adjusted R-Squared) for one dependent and two independent variables.(3-way) Pearson correlation method was used with exponential moving averages as the correlation calculation method. Use your source ( i use "close" generally ) as the dependent variable. Inspired by this article : real-statistics.com/correlation/multiple-correlation/
The Adjusted R-Squared coefficient is used as output, but the R-Squared coefficient is also available in the code. Adjusted R-Squared is often used for multiple correlations. It also gives better results in large samples. Here is the article about the difference of the two coefficients : investopedia.com/ask/answers/012615/whats-difference-between-rsquared-and-adjusted-rsquared.asp
I wrote this function to increase the efficiency of my Dow Factor I used before. When my research is over, I will apply the 3-factor correlation to my scripts. I hope that I will achieve more efficient indicators and oscillators and even strategies.
In this command, I gave a few variable values and plotted them as an example. I hope this function is useful in your work. Finally, you can use periods as mutable variables. The function is recovered from integer loads. Best regards. Noldo