How to make a plot show all 24hours, one by one, on the x-axis

Hi. I'm trying to make a plot that should show energy production in every hour of the day. I tried this:

Hours_24 = (0:1:23)

plot(Hours_24, Prodution)

xlabel('Hours') %Legenda x

ylabel('MW') %Legenda y

datetick('x', 'HH')

title('Prodution')

grid on

But the result is that the x-axis only shows 00:00 in every single hour. I don't know what i'm doing wrong.

[Ali]

J'ai besoin d'afficher l'axe dex en fonction des heures mais entre deux heures il y a un bar par exemple entre 5h et 6h j'ai besoin d'afficher un bar comment faire ca

Answer 1

[Walter Roberson]

Hours_24 = (0:1:23)/24;

datetick expects the values to be in serial datenum format, which is in full days, so to get hours shown you need to use hours as fraction of 1 day.

[Luís Quesado]

Thank you very much! This is the second time you help me out.

Answer 2

[Geoff Hayes]

Luis - try using datenum to generate an array of serial date numbers which you can then plot along the x-axis. The datetick assumes that this is the format of the data in the x-axis. Just change your code to

 xdate = datenum(0,0,0,0:1:23,0,0);
 plot(xdate, Prodution)

and you should see the hours along the x-axis.