Area integration with the point where the mouse selected

I would like to integrate the area under the the curve and hope to chose the area manually. I have attached a sample figure. Thank you!

[Image Analyst]

Can you attach a PNG screenshot? It's easier for us (no need to read it in with MATLAB, can see it here).

[Shu-An Hsieh]

Let me know if this is not working. Thank you!

Answer 1

[Benjamin Kraus]

You can use ginput to click and select points from a figure window.

Once you've got the points, "integrating the area under the curve" is just a matter of adding the values and dividing by the space between values.

Answer 2

[Kevin Holly]

You could also use a slider and some buttons in an app to select the area of interest. See App attached.