Matlab, how to calculate AUC (Area Under Curve)?

Question

I have the file data.txt with two columns and N rows, something like this:

0.009943796 0.4667975
0.009795735 0.46777886
0.009623984 0.46897832
0         


        

Answer 1

just add AUC = trapz(X,Y) to your program and you will get the area under the curve