clear;
clc;

fprintf('Fourieranalysis of signals\n\n');
fprintf('Figuur 1: input and output signals of the Fourierbox\n\n')

fprintf('\nWARNING!This script looks for the file in the working directory.\n\n');

f_name=input('Filenaam: ','s');

freq=input('frequency=1 kHz  (j/n): ','s');
if freq=='n';
    f=input('frequency [Hz]: ');
else
    f=1000;
end;



[data]=dlmread(f_name,' ',0,0);

%cd(wd);

T=1/f;
t=0:3*T/2500:3*T;

s_data=size(data);
nr_punt=s_data(2);

signaal_in=data(2500:5000);
signaal_uit=data(5001:7501);

figure(1);
set(clf,'PaperType','A4');
set(clf,'Color',[1,1,1]);
subplot(2,1,1);
plot(t,signaal_in);
axis([0,3*T,-5,5]);
ylabel('Vin [V]','Fontsize',10);
subplot(2,1,2);
plot(t,signaal_uit);
axis([0,3*T,-0.5,0.5]);
xlabel('time [s]','Fontsize',10);
ylabel('Vuit [V]','Fontsize',10);