Create multiple arrays with different names and specific data

I have written a code that works but I think my code can be simplified with a for loop. The problem is that I do not know how.

Data is an array that consists of 12 times an integer, for example [1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24]

I want:

• 12 different arrays with different names
• the first array has to consist of the first and 13th value (with a step size of 12) [1 13]
• the second array has to consist of the second and 14th value (with a step size of 12) [2 14]
• the third array has to consist of the third and 14 value (with a step size of 12) [3 15]
• the fourth array has to consist of the fourth and 14 value (with a step size of 12)

[darova]

Don't you want 2D matrix? Only 12 arrays?

[Stephen23]

" but I think my code can be simplified with a for loop."

Yes, it can be written very efficiently using a loop and indexing.

Or probably even more efficiently by keeping the data together and using reshape.

"The problem is that I do not know how."

Just use indexing into one array. Or reshape.

Do NOT try to dynamically access variable names, unless you want to force yourself into writing slow, complex, obfuscated, buggy code that is hard to debug:

https://uk.mathworks.com/matlabcentral/answers/304528-tutorial-why-variables-should-not-be-named-dynamically-eval

Answer 1

[Turlough Hughes]

It is possible to do exactly what you asked but that is considered a bad coding practice (explanation here).

Why don't you store the values in a single variable as follows:

D = reshape(Data,Aantalsensoren,[]);

and use the indices in an equivalent manner. So instead of D1, you can write:

>> D(1,:)

ans =

     1    13
     

insead of D2, you can write:

>> D(2,:)

ans =

     2    14

[Stephen23]

"...but that is c̶o̶n̶s̶i̶d̶e̶r̶e̶d̶ a bad coding practice"

https://www.mathworks.com/help/matlab/matlab_prog/string-evaluation.html

[Niet hier]

Thanks!