coursera/machine learning/machine-learning-ex2/ex2/plotData.m

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.

% Create New Figure
figure; hold on;

% ====================== YOUR CODE HERE ======================
% Instructions: Plot the positive and negative examples on a
%               2D plot, using the option 'k+' for the positive
%               examples and 'ko' for the negative examples.
%

one = find(y == 1);
zero = find(y == 0);
scatter(X(one,1), X(one,2), 'b', '+', 'filled');
scatter(X(zero,1), X(zero,2), 'r', 'o', 'filled');








% =========================================================================



hold off;

end