MATLAB: Is it possible to create and save integer vectors in MATLAB

integernumbersavevector

I mean, save it on less space than standard vectors with floating point numbers? or MATLAB automatically save integers in an effective way?

Look at uint8, uint16,...

Possibly:

rank = [4, 1, 2, 2, 4];
[~, ~, rank_new] = unique(rank)

To obtain 16-digit ASCII format using the SAVE function, use the following command:

save -ascii -double

Following is an example of writing "pi" to a TXT-file with double precision using DLMWRITE:

dlmwrite('myfile1.txt', pi, 'delimiter', '\t', 'precision', 16)

For more information on precision specification, refer the respective documentation pages by executing the following MATLAB commands:

doc save
doc dlmwrite

Information on C-style format string allowed in DLMWRITE can be found here:

doc sprintf