Box Plot for Time (HH:MM:SS) data

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Ganesh Naik
Ganesh Naik le 17 Avr 2021
Commenté : Ganesh Naik le 20 Avr 2021
Hi all, I am trying to get the boxplot for Time (HH:MM:SS) and day name data but unable to get the required plot. In detail, I would like to get the Boxplot in terms of days, (Monday to Sunday). I have attached the sample data and any help in this regard is highly appreciated.
  3 commentaires
Ganesh Naik
Ganesh Naik le 18 Avr 2021
Hi Cris thanks for your response. I have managed to get box plot using command "boxplot(x,y)" for similar set of data where column A data (please refer to the figure) were the same (x -data) but column B data were numbers. For that I have got the plot (attached here). But now, I am not able to get the boxplot for the time (HH:MM:SS) data. I can easily do the box plot if column B contains numbers or decimals. It is also demonstrated for Matlab 'carsmall" data set as an example. So any help in getting the boxplot for time data (HH:MM:SS) would be highly appreciated.
Cris LaPierre
Cris LaPierre le 18 Avr 2021
Yes, with numeric data, you can calculate medians and standard deviations. It looks like your data is a character array, meaning it is text. See Jonas' suggestion below.

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Jonas
Jonas le 18 Avr 2021
i suggest to convert you time (Hour : Minute : Seconds) to seconds using
[~, ~, ~, H, MN, S]=datevec('14:35:22','HH:MM:SS');
MN=MN+60*H;
S=S+MN*60;
then doing you boxplot thing and then converting your boxplot y labels back to a timestring
  4 commentaires
Jonas
Jonas le 19 Avr 2021
or the other way around: if you have specific times you want to see, calculates them as seconds, set the values as yticks and then set the ylabels to the times you wanted
Ganesh Naik
Ganesh Naik le 20 Avr 2021
Hi Jonas, thanks for your help. I am going to accept the answer.

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