Matrix with one numbers column and one strings column.

Ok, so I have a for loop which returns me, for every file I read from a folder, the name of the file and some values I read from the file. I need to create a matrix with the first column containing the value from every specific file and the secound column should contain the name of the file from which that value was read. I need to sort those files descending by the values from each one of them.

Let's say I have three files: '1.txt', '2.txt', '3.txt'.

I read 1 from '1.txt', 5 from '2.txt' and 3 from '3.txt'. The final matrix should be like this [1 1.txt; 3 3.txt; 5 2.txt]

I hope I made myself clear.

Answer 1

[Jos (10584)]

You can use cell arrays for this, which can hold a mixture of types. Each cell contains something, possibly another cell array. To get a specific cell, use the standard notation with round brackets. To get the content of a cell, use curly brackets

C = {1 '1.txt' ; 2 '2.txt'}
OneCell = C(2,1) 
Content = C{2,1}

[Graur Alin]

Can I sort a cell array then? I have to display the results in a descending order.

[Walter Roberson]

You can sort a column of a cell array and request the sort order as an output. You can then use the sort order to index the entire cell array.

[~, sortidx] = sort([A{:,1}]);
sortedA = A(sortidx,:);