Hello Samah,
It's not entirely clear to me what you are looking for. If you have a MAT file that contains an array, and you want only the last element of the array, you could do something like this:
load myMatFile.mat myArrayName
val = myArrayName(end);
If using load, it is generally good practice to specify which variables are being loaded. This allows the code to be more readable by seeing where variables originate from.
You can also use the matfile function to access the data within the MAT file, without explicitly loading all variables. This only works for numeric data, and is most efficient if the MAT file was saved with the v7.3 setting or argument. m = matfile('myMatFile.mat');
val = m.myArrayName(end);
Hope this helps!
-Cam
