How can I plot below discriminant functions (g1(x), g2(x), g3(x))?

Under these numbers:

Answer 1

[Ram]

Hi Rosaline, I understand that you want to plot the above three discrimenant functions.

This is a possible approach, please adject the below limits accoding to your needs;

x = linspace(0, 10);
f = @(x) ((0.5/sqrt(2*pi))*exp(-(x-1).^2/2));
g = @(x) ((0.5/sqrt(2*pi))*exp(-(x+1).^2/2));
h = @(x) ((0.5/sqrt(2*pi))*exp(-(x-1).^2/2) + (0.5/sqrt(2*pi))*exp(-(x+1).^2/2));
figure
plot(x, [f(x); g(x); h(x)])
grid
legend('f(x)','g(x)', 'h(x)', 'Location','best')

Output for above code snippet:

Please also check; https://www.mathworks.com/help/matlab/ref/plot.html.

Hope it's helpful.

-Ram