Cursera: machine learning ex4.

2015-03-08 11:38:13 +04:00
parent 67b4092b96
commit d8ecf43e80
16 changed files with 1378 additions and 0 deletions
--- a/machine_learning/mlclass-ex4-008/mlclass-ex4/sigmoid.m
+++ b/machine_learning/mlclass-ex4-008/mlclass-ex4/sigmoid.m
@@ -0,0 +1,6 @@
+function g = sigmoid(z)
+%SIGMOID Compute sigmoid functoon
+%   J = SIGMOID(z) computes the sigmoid of z.
+
+g = 1.0 ./ (1.0 + exp(-z));
+end