You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: ZeroCrossings.m
    path of file: ./repos/OPEN_FPE_IFT/Functions_v5-MATLAB
    
    the code of the file until where you have to start completion: function [Lint,lambda,lambda1,EpsNew,h]=ZeroCrossings(data,Fs,m_data,nu,low_freq,x_achse_k_spektrum_2pi,E_k,h)
if low_freq== Fs/2
    fc  = low_freq-1;
else
    fc  = low_freq;
end

% f0  = 0.02;
f0  = 50/(length(data)/Fs);
% I did it in a way where we only get lambda and L
FilterSizes         = logspace(log10(f0),log10(fc),60);

etac                = m_data./FilterSizes;

[ns,l,sigmavoro]    = computeZeros(data,Fs,FilterSizes,m_data);

C       = 1;
lambda  = l/C/pi;
II  
    
function [EpsNew,h]=PostProcEps(data,m_data,Fs,nu,x_achse_k_spektrum_2pi,E_k,h)
% UU              = m_data;
% UUstd           = std(data);
% U_tmp1          = m_data; 
% Fs              = Fs.*2.*pi./m_data;

% Nfft            = 4096*4;
% [P,f]           = pwelch(data-m_data,hanning(Nfft),Nfft/4,Nfft,(Fs.*2.*pi./m_data));
    
% a               = 0;
% while a==0
%     FIG=figure;
%     loglog(P.*(f).^2.*15.*nu,'LineWidth',2);
%     set(FIG, 'Position', [1, 1, 1000, 800]);
%     xlim([1 numel(P)]

%     b=1;
%     while b==1
        %Andre
        y_tmp = E_k.*(x_achse_k_spektrum_2pi).^2.*15.*nu;
        h(14) = figure;
        loglog(x_achse_k_spektrum_2pi,y_tmp,'-','LineWidth',2)
        hold on
        xlabel('$k= / \frac{1}{m}$', 'interpreter','latex');
        ylabel('E(k)$\cdot k^2 \cdot 15\nu $ / $\frac{m^3}{s^3}$', 'interpreter','latex')
        xlabel('$k\ (1/m)$','interpreter','latex');
%         xlabel('$k=\frac{2 \pi f}{<u>} / m^{-1}$', 'interpreter','latex');
        ylabel('$E k^2 15\nu\ (m^3/s^3)$', 'interpreter','latex')
        
        set(gca,'YScale','log');
        axis square
        set(gcf, 'Color', 'w')
        set(gca, 'FontSize',18)
        fig_setup
        legend