How to find area from a plotted graph which was imported from excel

I have plotted a graph from a excel data and I want to extend the graph and find an area

[Walter Roberson]

Is the graph itself imported from excel, or only the data?

If it is only the data, then matlab does care where the data came from once it is in memory.

To calculate area we need to know more about the data and graph.

[Harish Chandra Chowdary Thakkilapati]

The data is imported from excel and firstly i want to filter the data and male a linear graph is it possible

[Walter Roberson]

MATLAB has a number of filters available, even a filter design tool in the Signal Processing Toolbox.

Answer 1

[Monisha Nalluru]

Generally, in order to find an area under graph integration is used. As data is already imported in this case, use trapz or polyarea function which are used to find area under a graph in matlab.

Refer the following link:

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