Multiple plots on the same graph

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Siriki Kone
Siriki Kone on 24 Oct 2021
Edited: Matt J on 24 Oct 2021
Hello!
I know this question have been frequently asked but since i still get an error after trying all the proposed solutions here, i decide to post my problem:
i generate PDF values and i want to plot all of them on the same graph with the same x axis:
Path3='C:\matlab\OutputDateien\DataAnalyse\01_A01\hhe';
P3=strcat(Path3,'\PSDPDFs\06\');
S3=(fullfile(P3,'*.mat'));
AllFiles3=dir(S3);
load('C:\matlab\OutputDateien\tc.mat'); %loading my period vector
figure;
for kk=1:length(AllFiles3) %:numel(AllFiles)
File3=AllFiles3(kk).name;
semilogx(tc,File3);
hold on;
xlabel('Period (s)')
ylabel('Power 10*log10 (m/s^2)/Hz or dB')
title('PSD diagram ')
axis tight
end
hold off
i try to use hold on function after my plot but i get this following error:
Error in color/linetype argument.
Error in PSDplot (line 37)
semilogx(tc,File3);
since i got 500 PDF vectors i think using a loop would be better instead of plotting them like semilogx(tc,PDF1, tc,PDF2, tc,PDF2,...)
tc and PDF have both the same length (113).

Accepted Answer

Matt J
Matt J on 24 Oct 2021
Edited: Matt J on 24 Oct 2021
I think the line where you plot is supposed to look like,
semilogx(tc,PDF);
but the code you've posted contains no variable called PDF. Instead you have,
semilogx(tc,File3)
where File3 is not even vector of numeric data. It's just a file name.

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