Multiple regression is a method for regression analysis of "multiple" variables (such as soybean, wheat, corn and soybean oil prices in futures trading).

"Regression" is to go back and find out the relevant formulas of these data according to the existing data. According to this formula, we can calculate or estimate the future price trend. For example, the correlation curve between two prices (soybean and corn in CBOT) is analyzed in the above figure, and the result is a straight line.