findcombos.m

% function [combos] = findcombos(selectedsites,nmax)
%--------------------------------------------------------------------------
% Jade Crosbie                                           kcrosbie@usgs.gov
% Geology, Geophysics, and Geochemistry Science Center
% U.S. Geological Survey
% Created: Oct 10 2020
% Updated: Jan 6 2020
% MATLAB version: 2019b
%--------------------------------------------------------------------------
% Computes an array of indices to find all combinations of stations for MMT
% INPUT
% selectedsites  = Structure from ArrayManager with metadata like station
%                  names
% nmax           = max number for station combos, reccommend nmax = 5.
% OUTPUT
% combos         = Array with indices for all combos of selected sites.
function [combos] = findcombos(selectedsites,nmax)
ii = 2;
ik = 1;
    while ii <= nmax
       combos{ik} = nchoosek([1:length(selectedsites)],ii)
       ii = ii + 1;
       ik = ik + 1;
    end
end