Clarification needed for kmer matrix columns

[Louis-MG]

Hello, I needed a matrix of the kmer counts for several samples. I followed the instructions given in the example of the documentation, but I don't see specified the correspondence between samples and columns, neither in the previous link nor in the documentation for the aggregate module. I would guess it follows the order given by the file of file ? I hope I didnt miss anything.
Thank you !

[nikostr]

I also looked for some info on this, and found the following at https://github.com/tlemane/kmtricks/wiki/IOs-API#1a-stream-it-1

std::vector<count_type> counts(reader.infos().nb_counts); // count order follows the sample order in the input fof

When I've dumped the matrix previously it also behaves in a way that would be compatible with this.