creating m files

main.m

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+%%%%%%
+%main code
+%
+%LY Pechvattana
+%
+%%%%%%
+
+pkg load signal
+
+%load data
+signal = csvread('unknownsignal.csv');
+
+%plotting signal in time domain
+figure;
+plot(signal);
+xlabel('Time in [s]');
+ylabel('Amplitude');
+title('Signal data in time domain');