Load file with certain number

Dear all,

I'm writing a program in Matlab, where all data is first loaded from the file '20.mat'. Then I create a vector with all 20's, to remember the data in that column is from the film '20.mat'. After some scripts, I want to replace one of these column with data from a file-number lower. So for example:

First: A=[20 20 20 20 20]

Replacing place: 4

Load data with number from A(4)-1 = 19, and replace column 4 with the data from column 4 of '19.mat'.

The problem however is that I don't know beforehand with number I have to load, because if in the next step the replacing place is 1, I again need to load data from '19.mat', but if I again have to replace place 4, I have to load '18.mat'. I could write an if-loop for all separate cases, but because there are quite a lot of cases, I was wondering if there is a direct way to do this. Something like load('r.mat'), where r=A(4)-1.

Kind regards, Marjolein

Answer 1

[Azzi Abdelmalek]

r=sprintf('%d',A(4)-1)
data=load(r)

[Azzi Abdelmalek]

Marjolein commented

Thank you for your response. While implementing the above, I realize I have to both load '19.mat' and 'd19.mat'. It is probably easy to add the 'd' somewhere, but I haven't really found it yet. Can you help me?

[Azzi Abdelmalek]

Marjolein commented

Nevermind, I already got it!