SupportVectorMachines/plotData.m at master · XavierGithub/SupportVectorMachines

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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

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