we took deez from gingerman thank you :D

linear_regression.m

@@ -0,0 +1,15 @@
+% linear regression
+% y = a + b x
+clear;clc;close all;
+%x = input("enter values of x:\n");
+%y = input("enter values of y:\n");
+x = [1 2 3 4 5];
+y = [2 3 4 5 6];
+n = length(x);
+coeff = [sum(x) n;sum(x) sum(x.^2)];
+f_terms = [sum(y);sum(x.*y)];
+results = inv(coeff) * f_terms;
+a = results(1);
+b = results(2);
+f = a + b * x;
+plot(x, y,'', x, f);