How do I get the value under the curve?

Hello,

I want know the value under a specific curve I have. I have already tried the command: area

But I want to know the exact value under the entire curve, I dont know which command(s) I have to use to get to this answer.

Can someone help me with this?

This is the script I am using.

Thanks in advance

[Adam]

doc cumsum
doc trapz
doc cumtrapz

One of those should be able to help with what you want. I don't remember off-hand what each does specifically different to each other, but they can all be used for those type of problems.

[HV]

Thanks for your reply,

I tried them but only got errors, I dont know how to correctly setup those commands, the data from the curve above, are the ones from: tijdSEC and fuelconsumptionsGS. Thats the only curve where I need to know the area underneath it.

Can you help me setting up the command correctly?

[Adam]

It's a long time since I've used them, but the help on each gives an example that you should be able to adapt.

[darova]

I tried them but only got errors

What kind of errors do you have?

[HV]

Sorry for my late response.

I got errors for NaN, then I found a way how to fix that issue.

In the end I found the area under the curve with trapz.

Answer 1

[Harsha Priya Daggubati]

Hi

There is a similar question asked in the community. You can refer to the following link:

https://www.mathworks.com/matlabcentral/answers/154089-area-under-curve-no-function