main_final.m

disp("Initilizing the best Linear Regression Program v1.0\n");

% clear and initialize 
clear; clc; close all; 

sprintf("Initilizing paths...\n");

% add paths
addpath('./lib');

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

sprintf("Loading data files...\n");
% load data file
file = load("data/data1.txt");
X = file(:,1);
Y = file(:,2);
m = length(Y); % examples count

sprintf("Plotting the data...\n");

% plot the data
% plot_data(X,Y)

theta0 = ones(97, 1);
theta1 = 1;
learn_rate = 0.0211;
gradient_data = gradient_descent(X, Y, theta0, theta1, learn_rate, 1000)

hold on
plot_data(X,Y)
Hx = gradient_data(1) + gradient_data(2)*X;
plot(X,Hx)
hold off