MATLAB: Separate Points for Plotting

[strokebow]

Hi,

I have generated 1000 data points.
I have assigned them a class (1 or 0) depending if they are above or below a decision boundary.

I want to plot the data on a graph with the class 1 data points in one colour and the class 0 data points in another.

any ideasa how I can do this please?

Thanks!

 

[MATLABdude]

Hi,

I have generated 1000 data points.
I have assigned them a class (1 or 0) depending if they are above or below a decision boundary.

I want to plot the data on a graph with the class 1 data points in one colour and the class 0 data points in another.

any ideasa how I can do this please?

Thanks!

Please don't cross-post to multiple subforums. I've already replied in your other thread:
https://www.physicsforums.com/showthread.php?t=310468

 

[Mene]

Hello,

Thank you for reaching out. In order to plot the data points with their assigned classes, you can use the "scatter" function in MATLAB. This function allows you to specify the x and y coordinates of the data points, as well as the color and shape of the markers. You can use a conditional statement to assign different colors to the data points based on their class, and then use the "hold on" command to plot both sets of points on the same graph. Here is an example code:

x = %insert your x coordinates here
y = %insert your y coordinates here
class = %insert your class assignments here

%plot class 1 points in red
scatter(x(class==1), y(class==1), 'r')

%plot class 0 points in blue
scatter(x(class==0), y(class==0), 'b')

%add labels and legend
xlabel('x')
ylabel('y')
legend('Class 1', 'Class 0')

I hope this helps. Let me know if you have any further questions. Happy plotting!