| 123456789101112131415161718192021222324252627282930313233343536373839 |
- clear ; close all; clc
- %% Load Data
- % The first two columns contains the X values and the third column
- % contains the label (y).
- data = load('ex2data2.txt');
- X = data(:, [1, 2]); y = data(:, 3);
- X = mapFeature(X(:,1), X(:,2));
- % Initialize fitting parameters
- % Compute and display initial cost and gradient for regularized logistic
- % regression
- %test_theta = ones(size(X,2),1);
- %[cost, grad] = costFunctionReg(test_theta, X, y, 10);
- a = randi(10,5,5)
- b = randi(9,5,1)
- a*b
- [zeros(rows(a), 1) a(:, 2:end)];
- c = [a(:,1) [zeros(rows(a), columns(a) -1)]]
- c * b
- d = [zeros(rows(a), 1) [a(:,2:end)]]
- d * b
- e = (c*b) + (d*b) - (a*b)
|
