Saving data of plotted sine wave into excel file or display on matlab as data (not visual graphs)

Hi everyone,

I am trying to plot a 5 Hz sine wave with sampling frequency of 500 Hz for 5 seconds long;

The following is the code I wrote:

fs= 500;

T=1/fs;

D= 5;

t= 0:T: D-T;

f=5;

A= 0.001;

x= A* sin(2*pi*f*t)

figure('Name',' tACS Signal')

plot(t,x)

xlabel('Time (s)');

ylabel('Amplitude of Current (A)');

So, I wanted to get all data points that creates this sine wave, both axis (time) and (current) into matrices (2 columns with about 2500 rows). Then, I think the process to convert .mat to .csv is simple. Please assist! Thank you very much.

Regards,

Anis

Answer 1

[Cris LaPierre]

Why a mat file first? Why not just write the data to a file using writematrix?

writematrix(A,filename)

writematrix([t;x]','sinwave.csv')

[Anis Fatini Abdul Aziz]

Oh, we can do that? I thought it has to be done like the usual way. Hence my question. Thank you!

[Cris LaPierre]

Yes, you can do it that way. It worked on my computer. There are many ways to write data to file. See the Data Import and Export page for more.