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Getting shifted frequency curves instead of normal ones

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Ramo Rafsel
Ramo Rafsel 2020-9-22
评论： Ameer Hamza 2020-9-24
Why do I get somehow displaced curves ( see first picture) that should normally be an unshifted curve?(see the second picture)
The frequency is calculated through given frequency values and a time column
The code looks like the following
nexttile
Fd1 = double(split(string(fdim1(1:end-1)) , ","));
Fd1 = Fd1(:,1);
plot(timefdim1(1:end-1),Fd1);
xticks([timefdim1(1) timefdim1(end-1)]);
yticks([Fd1(1) Fd1(end-1)]);
title('dimfrequency 1')
xlabel('Uhrzeit in [HH:MM:SS]')
ylabel('Frequenzintervall 150kHz - 80 MHz')
nexttile
Fd2 = double(split(string(fdim2(2:end-1)) , ","));
Fd2 = Fd2(:,1);
plot(timefdim2(2:end-1),Fd2);
xticks([timefdim2(2) timefdim2(end-1)]);
yticks([Fd2(2) Fd2(end-1)]);
title('dimfrequency 2')
xlabel('Uhrzeit in [HH:MM:SS]')
ylabel('Frequenzintervall 80 MHz - 1 GHz')
nexttile
Fd3 = double(split(string(fdim3(3:end-1)) , ","));
Fd3 = Fd3(:,1);
plot(timefdim3(3:end-1),Fd3);
xticks([timefdim3(1) timefdim3(end-1)]);
yticks([Fd3(1) Fd3(end-1)])
title('dimfrequency 3')
xlabel('Uhrzeit in [HH:MM:SS]')
ylabel('Frequenzintervall 1 GHz - 2,7 GHz')
nexttile
F1 = double(split(string(fbll1(1:end-1)) , ","));
F1 = F1(:,1);
plot(timefbll1(1:end-1),F1);
xticks([timefbll1(1) timefbll1(end-1)]);
yticks([F1(1) F1(end-1)]);
title('bllfrequency 1')
xlabel('Uhrzeit in [HH:MM:SS]')
ylabel('Frequenzintervall 150kHz - 80 MHz')
nexttile
F2 = double(split(string(fbll2(2:end-1)) , ","));
F2 = F2(:,1);
plot(timefbll2(2:end-1),F2);
xticks([timefbll2(2) timefbll2(end-1)]);
yticks([F2(2) F2(end-1)]);
title('bllfrequency 2')
xlabel('Uhrzeit in [HH:MM:SS]')
ylabel('Frequenzintervall 80 MHz - 1 GHz')
nexttile
F3 = double(split(string(fbll3(3:end-1)) , ","));
F3 = F3(:,1);
plot(timefbll3(3:end-1),F3);
xticks([timefbll3(1) timefbll3(end-1)]);
yticks([F3(1) F3(end-1)])
title('bllfrequency 3')
xlabel('Uhrzeit in [HH:MM:SS]')
ylabel('Frequenzintervall 1 GHz - 2,7 GHz')
Thanks a lot in advance for the help.
  4 个评论
显示 2更早的评论
Ramo Rafsel
Ramo Rafsel 2020-9-22
This is the written code for the plotting:
nexttile
Fd1 = double(split(string(fdim1(1:end-1)) , ","));
Fd1 = Fd1(:,1);
plot(timefdim1(1:end-1),Fd1);
xticks([timefdim1(1) timefdim1(end-1)]);
yticks([Fd1(1) Fd1(end-1)]);
title('dimfrequency 1')
xlabel('Uhrzeit in [HH:MM:SS]')
ylabel('Frequenzintervall 150kHz - 80 MHz')
nexttile
Fd2 = double(split(string(fdim2(2:end-1)) , ","));
Fd2 = Fd2(:,1);
plot(timefdim2(2:end-1),Fd2);
xticks([timefdim2(2) timefdim2(end-1)]);
yticks([Fd2(2) Fd2(end-1)]);
title('dimfrequency 2')
xlabel('Uhrzeit in [HH:MM:SS]')
ylabel('Frequenzintervall 80 MHz - 1 GHz')
nexttile
Fd3 = double(split(string(fdim3(3:end-1)) , ","));
Fd3 = Fd3(:,1);
plot(timefdim3(3:end-1),Fd3);
xticks([timefdim3(1) timefdim3(end-1)]);
yticks([Fd3(1) Fd3(end-1)])
title('dimfrequency 3')
xlabel('Uhrzeit in [HH:MM:SS]')
ylabel('Frequenzintervall 1 GHz - 2,7 GHz')
nexttile
F1 = double(split(string(fbll1(1:end-1)) , ","));
F1 = F1(:,1);
plot(timefbll1(1:end-1),F1);
xticks([timefbll1(1) timefbll1(end-1)]);
yticks([F1(1) F1(end-1)]);
title('bllfrequency 1')
xlabel('Uhrzeit in [HH:MM:SS]')
ylabel('Frequenzintervall 150kHz - 80 MHz')
nexttile
F2 = double(split(string(fbll2(2:end-1)) , ","));
F2 = F2(:,1);
plot(timefbll2(2:end-1),F2);
xticks([timefbll2(2) timefbll2(end-1)]);
yticks([F2(2) F2(end-1)]);
title('bllfrequency 2')
xlabel('Uhrzeit in [HH:MM:SS]')
ylabel('Frequenzintervall 80 MHz - 1 GHz')
nexttile
F3 = double(split(string(fbll3(3:end-1)) , ","));
F3 = F3(:,1);
plot(timefbll3(3:end-1),F3);
xticks([timefbll3(1) timefbll3(end-1)]);
yticks([F3(1) F3(end-1)])
title('bllfrequency 3')
xlabel('Uhrzeit in [HH:MM:SS]')
ylabel('Frequenzintervall 1 GHz - 2,7 GHz')

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采纳的回答

Ameer Hamza
Ameer Hamza 2020-9-22
编辑：Ameer Hamza 2020-9-22
The time vectors were stored in categorical datatype (bad choice). Therefore, you were getting that unexpected plots. Try the following code. I have only added lines before the plot() statement.
nexttile
Fd1 = double(split(string(fdim1(1:end-1)) , ","));
Fd1 = Fd1(:,1);
timefdim1 = duration(string(timefdim1));
plot(timefdim1(1:end-1),Fd1);
xticks([timefdim1(1) timefdim1(end-1)]);
yticks([Fd1(1) Fd1(end-1)]);
title('dimfrequency 1')
xlabel('Uhrzeit in [HH:MM:SS]')
ylabel('Frequenzintervall 150kHz - 80 MHz')
nexttile
Fd2 = double(split(string(fdim2(2:end-1)) , ","));
Fd2 = Fd2(:,1);
timefdim2 = duration(string(timefdim2));
plot(timefdim2(2:end-1),Fd2);
xticks([timefdim2(2) timefdim2(end-1)]);
yticks([Fd2(2) Fd2(end-1)]);
title('dimfrequency 2')
xlabel('Uhrzeit in [HH:MM:SS]')
ylabel('Frequenzintervall 80 MHz - 1 GHz')
nexttile
Fd3 = double(split(string(fdim3(3:end-1)) , ","));
Fd3 = Fd3(:,1);
timefdim3 = duration(string(timefdim3));
plot(timefdim3(3:end-1),Fd3);
xticks([timefdim3(1) timefdim3(end-1)]);
yticks([Fd3(1) Fd3(end-1)])
title('dimfrequency 3')
xlabel('Uhrzeit in [HH:MM:SS]')
ylabel('Frequenzintervall 1 GHz - 2,7 GHz')
nexttile
F1 = double(split(string(fbll1(1:end-1)) , ","));
F1 = F1(:,1);
timefbll1 = duration(string(timefbll1));
plot(timefbll1(1:end-1),F1);
xticks([timefbll1(1) timefbll1(end-1)]);
yticks([F1(1) F1(end-1)]);
title('bllfrequency 1')
xlabel('Uhrzeit in [HH:MM:SS]')
ylabel('Frequenzintervall 150kHz - 80 MHz')
nexttile
F2 = double(split(string(fbll2(2:end-1)) , ","));
F2 = F2(:,1);
timefbll2 = duration(string(timefbll2));
plot(timefbll2(2:end-1),F2);
xticks([timefbll2(2) timefbll2(end-1)]);
yticks([F2(2) F2(end-1)]);
title('bllfrequency 2')
xlabel('Uhrzeit in [HH:MM:SS]')
ylabel('Frequenzintervall 80 MHz - 1 GHz')
nexttile
F3 = double(split(string(fbll3(3:end-1)) , ","));
F3 = F3(:,1);
timefbll3 = duration(string(timefbll3));
plot(timefbll3(3:end-1),F3);
xticks([timefbll3(1) timefbll3(end-1)]);
yticks([F3(1) F3(end-1)])
title('bllfrequency 3')
xlabel('Uhrzeit in [HH:MM:SS]')
ylabel('Frequenzintervall 1 GHz - 2,7 GHz')
  2 个评论
Ramo Rafsel
Ramo Rafsel 2020-9-24
编辑：Ramo Rafsel 2020-9-24
Thanks a lot Ameer, you solved a problem that I have been dealing with weeks long!
I just thought maybe I can ask this too since it is the next step and I am not sure whether it is even possible or not.
Is it possible to plot both figures in one, even though both vectors (or the time length) of the two figures are not the same? (see the picture)
The first figure contains the blue average line and the frequency, the second figure contains a variable in Volt.
Ameer Hamza
Ameer Hamza 2020-9-24
Yes, it is possible. You can use hold() command and then call several plot commands. All of them will be drawn on one axes
hold on
plot(...)
plot(...)

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