commit b6ef092a183d5ce1b8eece55eb12c525af83e722
Author: jason_cv <jcoronav@tecmor.mx>
Date:   Tue Apr 14 17:40:15 2020 -0500

    Ejemplo de regresion lineal

diff --git a/Regresionlinealmatricial.py b/Regresionlinealmatricial.py
new file mode 100644
index 0000000..df56e77
--- /dev/null
+++ b/Regresionlinealmatricial.py
@@ -0,0 +1,23 @@
+import numpy as np
+import matplotlib.pyplot as plt
+
+###############################
+#Datos originales
+###############################
+X = 2 * np.random.rand(100, 1)
+y = 4 + 3 * X + np.random.randn(100,1)
+
+plt.plot(X,y,".")
+###############################
+
+X_b = np.c_[np.ones((100,1)), X] #Se agrega x0=1 para cada instancia
+theta_best=np.linalg.inv(X_b.T.dot(X_b)).dot(X_b.T).dot(y)
+
+X_new = np.array([[0], [2]])
+X_new_b = np.c_[np.ones((2, 1)), X_new] #Se agrega x0=1 para cada instancia
+y_predict = X_new_b.dot(theta_best)
+
+plt.plot(X_new, y_predict, "r-")
+plt.plot(X, y, "b.")
+plt.axis([0, 2, 0, 15])
+plt.show()
\ No newline at end of file