Do a plot of the messages from 24 hours. Hour by Hour

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Hey, so I got a variable of duration that has de time of each message that goes from 00:00:00 to 23:59:59 and I want to make a plot that show me the amount of messages each hour. How could I do it? I made this but I got an error:
Hours_24 = (0:1:23)/24;
figure(1)
plot(Hours_24,Time_AIS1);
The error showed is:
Error using plot
Vectors must be the same length.
  5 Comments
Adam Danz
Adam Danz on 30 Sep 2021
Your question suggests that you're trying to count the number of messages per hour but the code you shared suggests the problem is with plotting. So the question is not clear to me.
flashpode
flashpode on 5 Oct 2021
well I've got Time_AIS1 that has the time of all the messages and I want a figure that shows me 24 columns where each column has the mesages that have the same Hour. In total there should be just 24 columns.

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Answers (1)

Sulaymon Eshkabilov
Sulaymon Eshkabilov on 30 Sep 2021
Easy solution might be this, e.g.:
N = numel(Time_AIS1);
figure(1)
stem(1:N, Time_AIS1), xlabel('Hour'), ylabel('# of messages')

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