How can I automatically load multiple data files and insert it into one matrix?

I have 10 .mat files with 5 variables each. I want to load them automatically in MATLAB into one Matrix were the values of the variables are inserted one after another. And I want to insert a counter on the right that tells me the number of the file.

[Var1    Var2     Var3     Var4     Var5     Counter
Valfile1 Valfile1 Valfile1 Valfile1 Valfile1   1
Valfile1 Valfile1 Valfile1 Valfile1 Valfile1   1
Valfile1 Valfile1 Valfile1 Valfile1 Valfile1   1
Valfile2 Valfile2 Valfile2 Valfile2 Valfile2   2
Valfile2 Valfile2 Valfile2 Valfile2 Valfile2   2
Valfile2 Valfile2 Valfile2 Valfile2 Valfile2   2
...

Is that possible with a for loop?

Answer 1

[Wilson A N]

Yes it is possible. You just have to print the index indicating from which file you are currently loading the data. You can see the sample code given below:

k = [];
FileName = {'file1.mat','file2.mat','file3.mat'};

for i = 1:3
    k = [k; importdata(FileName{i}) i*ones(5,1)];
end

Answer 2

[Walter Roberson]

http://matlab.wikia.com/wiki/FAQ#How_can_I_process_a_sequence_of_files.3F