How to draw a semi parabola plot for a certain range (0, 1) and (0 90)?

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Dear MATALAB community,
I need to get a plot as attached in image.
X-axis ranges (0, 1) and Y-axis ranges (0, 90)
I need to create certain zones and add scatters point in that semi-perbolic plane.
I have scattering points but I want to present and overlap results with this plane to idetify typ of data.
Thank you for your feedback.

Accepted Answer

Amjad Iqbal
Amjad Iqbal on 7 Mar 2023 at 9:27
Edited: Amjad Iqbal on 7 Mar 2023 at 9:27
@Jasvin Thank you for your suggestions,
I obtained parabola plane for my task as given below.
y = linspace(0, 1, 100);
x = y - y.^2;
% Plot the data
plot(x*4, y*95, 'linewidth', 2)
% Add axis labels and title
hold on
title('H - \alpha plane')
xlim([0 1])
ylim([0 90])

More Answers (1)

Jasvin on 7 Mar 2023 at 8:37
Assuming that you have the code to generate the parabola (if you don't then you can refer to the below MATLAB Answer, and the scattering points refer to the endpoints of each zone/region, you can first plot the parabola and then use the hold on command ( to overlay plots on top of the parabola.
You can also make use of functions like the rectangle to plot specific shapes (

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