view plotData.m @ 0:f602dc601e9e

Initial commit
author Jordi Gutiérrez Hermoso <jordigh@octave.org>
date Mon, 21 Nov 2011 15:08:02 -0500
parents
children
line wrap: on
line source

function plotData(X, y)
%PLOTDATA Plots the data points X and y into a new figure 
%   PLOTDATA(x,y) plots the data points with + for the positive examples
%   and o for the negative examples. X is assumed to be a Mx2 matrix.
%
% Note: This was slightly modified such that it expects y = 1 or y = 0

% Find Indices of Positive and Negative Examples
pos = find(y == 1); neg = find(y == 0);

% Plot Examples
plot(X(pos, 1), X(pos, 2), 'k+','LineWidth', 1, 'MarkerSize', 7)
hold on;
plot(X(neg, 1), X(neg, 2), 'ko', 'MarkerFaceColor', 'y', 'MarkerSize', 7)
hold off;

end