peak_valley_[-]

function [pk_hgt,vy_dpt] = pk_vly(ind_lcl,ind_avg,W)
%PEAK_VALLEY Returns peaks and valley
%   Peak -> if difference b-n local_index and avg_index is positive
%   Valley -> otherwise
    j_p = 0;
    j_v = j_p;
    j_f = j_v;

    pk_hgt = [];
    vy_dpt = [];

    for i = 1:W
        if (ind_lcl(i) - ind_avg(i) > 0)  %It was general
            pk_hgt(j_p+1) = ind_lcl(i) - ind_avg(i);
            j_p = j_p+1;
        elseif (ind_lcl(i) - ind_avg(i) < 0)
            vy_dpt(j_v+1) = ind_lcl(i) - ind_avg(i);
            j_v = j_v+1;
        else
            j_f = j_f+1;
        end
    end
end