function [output_val,output_tally]=onedim_randomizer(possible_matrix,tally)
%this function, receiving a range of possibilities and a tally of how those possibilities have been used thus far, randomly finds 
%a new possibility each trial st the choice is from among those that at the time of the trial have not chosen any more than any other possibility

num_possibilities=possible_matrix(1);  
if ~(length(max(tally)))
    output_tally=zeros(1,num_possibilities);  %this prevents the situation where on the first trial the first possible value is chosen and the min of tally is 1, rather than zero
    na=rand*num_possibilities;
    na=ceil(na);            
    output_tally(na)=1;
else
    ca_before=min(tally);
    ca_after=ca_before-1;
    while ca_before~=ca_after
        na=rand*num_possibilities;
        na=ceil(na); 
        ca_after=tally(na);  %escape the while loop if the randomly generated value's spot in the tally matrix has the same value as the min of the tally matrix
    end
    output_tally=tally;
    output_tally(na)=output_tally(na)+1;
end

ba=na-1;        %correcting for indexing
above_min=ba*possible_matrix(3);
output_val=above_min+possible_matrix(2);