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: test_bug1129.m
    path of file: ./repos/fieldtrip/test
    
    the code of the file until where you have to start completion: function test_bug1129

% MEM 1gb
% WALLTIME 00:10:00
% DEPENDENCY ft_preprocessing ft_preproc_bandpassfilter ft_preproc_bandstopfilter ft_preproc_lowpassfilter ft_preproc_highpassfilter
% DATA private

% change filter order for 'fir' (fir1) filter type, rather than 25 by
% default, instead to be based on Fs, low-frequency, and data-length

%% low-level functions on random data
close all
for N=199:201

    
function test_bug1129

% MEM 1gb
% WALLTIME 00:10:00
% DEPENDENCY ft_preprocessing ft_preproc_bandpassfilter ft_preproc_bandstopfilter ft_preproc_lowpassfilter ft_preproc_highpassfilter
% DATA private

% change filter order for 'fir' (fir1) filter type, rather than 25 by
% default, instead to be based on Fs, low-frequency, and data-length

%% low-level functions on random data
close all
for N=199:201
  x1 = randn(1,N);
  
  % % % FT default if call 'fir' (order 25)
  y4 = ft_preproc_bandpassfilter(x1, 1000, [15 25],25,'fir');
  y7 = ft_preproc_bandpassfilter(x1, 1000, [15 25],100,'fir');
  y8 = ft_preproc_bandpassfilter(x1, 1000, [15 25],200,'fir');
  y9 = ft_preproc_bandpassfilter(x1, 1000, [15 25],[],'fir');
  % figure;plot(linspace(0,1000,N),abs(fft(y4)));axis([0 40 0 inf])
  % hold on;plot(linspace(0,1000,N),abs(fft(y7)),'r');axis([0 40 0 inf])
  % hold on;plot(linspace(0,1000,N),abs(fft(y8)),'g');axis([0 40 0 inf])
  % hold on;plot(linspace(0,1000,N),abs(fft(y9)),'m');axis([0 40 0 inf])
  
  y4 = ft_preproc_bandstopfilter(x1, 1000, [15 25],25,'fir');
  y7 = ft_preproc_bandstopfilter(x1, 1000, [15 25],100,'fir');
  y8 = ft_preproc_bandstopfilter(x1, 1000, [15 25],200,'fir');
  y9 = ft_preproc_bandstopfilter(x1, 1000, [15 25],[],'fir');
  % figure;plot(linspace(0,1000,N),abs(fft(y4)));axis([0 40 0 inf])
  % hold on;plot(linspace(0,1000,N),abs(fft(y7)),'r');axis([0 100 0 inf])
  % hold on;plot(linspace(0,1000,N),abs(fft(y8)),'g');axis([0 100 0 inf])
  % hold on;plot(linspace(0,1000,N),abs(fft(y9)),'m');axis([0 100 0 inf])
  %
  y4 = ft_preproc_highpassfilter(x1, 1000, [15],25,'fir');
  y7 = ft_preproc_highpassfilter(x1, 1000, [15],100,'fir');
  y8 = ft_preproc_highpassfilter(x1, 1000, [15],200,'fir');
  y9 = ft_preproc_highpassfilter(x1, 1000, [15],[],'fir');
  % figure;plot(linspace(0,1000,N),abs(fft(y4)));axis([0 40 0 inf])
  % hold on;plot(linspace(0,1000,N),abs(fft(y7)),'r');axis([0 100 0 inf])
  % hold on;plot(linspace(0,1000,N),abs(fft(y8)),'g');axis([0 100 0 inf])
  % hold on;plot(linspace(0,1000,N),abs(fft(y9)),'m');axis([0 100 0 inf])
  %
  y4 = ft_preproc_lowpassfilter(x1, 1000, [15],25,'fir');
  y7 = ft_preproc_lowpassfilter(x1, 1000, [15],100,'fir');
  y8 = ft_preproc_lowpassfilter(x1, 1000, [15],200,'fir');
  y9 = ft_preproc_lowpassfilter(x1, 1000, [15],[],'fir');
  % figure;plot(linspace(0,1000,N),abs(fft(y4)));axis([0 40 0 inf])
  % hold on;plot(linspace(0,1000,N),abs(fft(y7)),'r');axis([0 100 0 inf])
  % hold on;plot(linspace(0,1000,N),abs(fft(y8)),'g');axis([0 100 0 inf])
  % hold on;plot(linspace(0,1000,N),abs(fft(y9)),'m');axis([0 100 0 inf])
end