Need to count projections from a graph

So I have this graph and I want to take the experation and insperation values from it. Basically the different peaks and minimums values, anyone have a good way for how I would do that? It's not immediatly obvious to me. Let me know if I need to explain more.

Answer 1

[Star Strider]

It depends on what information you want. The red line appears to interpret the results of the image behind it, so it would likely be best to just use it (although I do not know what it actually plots).

To get the peaks and valleys and their values, use either findpeaks (on the orignal and negated vector) or islocalmax and islocalmin to get the same information. To get the areas, use cumtrapz or trapz depending on the information you want.

See the documentation on the various functions that I link to here for details on using them.

[William]

Thanks! This helps a lot

[Star Strider]

As always, my pleasure!