MATLAB Answers

Display daily values at a certain time

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Markus Roedel
Markus Roedel on 21 Nov 2019
Commented: Markus Roedel on 3 Dec 2019
Hi all,
I am collecting runtime data of my heating system with an ESP8266. The uploaded time is reset every day at midnight, so each day starts with 0 minutes. I would like to create a chart that shows the runtime value at 23:59 of each day to allow a comparison of the daily burner runtime. Y-axis should be daily runtime, x-axis date.
Is that possible?
Thanks and best regards,


Nicolas B.
Nicolas B. on 21 Nov 2019
In which format do you save your data? What your data looks like?

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Answers (1)

Christopher Stapels
Christopher Stapels on 2 Dec 2019
Is the field you want to plot the one called "brennerlaufzeit"?

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Markus Roedel
Markus Roedel on 3 Dec 2019
Yes, correct. It is the runtime of my heating furnace. For my desired plot, the daily maximum of this field should be displayed. As the runtime only grows over the day, the maximum will always be at the end of the day just before the value is reset to 0 at 0:00 hours.

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