BoxPlot with datetime in Y-axis?

How can I draw a boxplot with datetime value in the y axis? (ex: if arrival times of a vehicle is available over a year, to show the mean, median arrival times)

Answer 1

[Adam Danz]

"How can I draw a boxplot with datetime value in the y axis? "

Convert the datetime to numeric and then use datetick() to display in date format.

arrivalTime = datetime('Jan 01, 2001 12:00') : 0.2 : datetime('Jan 01, 2002 12:00'); 
boxplot(datenum(arrivalTime)); 
datetick('y') %more options: https://www.mathworks.com/help/matlab/ref/datetick.html

"if arrival times of a vehicle is available over a year, to show the mean, median arrival times"

As the matlab documentation indicates, boxplot() displays the median value. You'll have to show the mean value manually.

hold on
plot(1, mean(datenum(arrivalTime)), '*', 'DisplayName', 'Mean')
legend()

Instead of manually specifying x=1 for the center of the box plot, you could get the boxplot centers using,

bh = findobj(gca,'type','line','tag','Box'); % handles to rectangular boxes
xdata = vertcat(bh.XData); 
boxCenters = (max(xdata,[],2) - min(xdata,[],2))/2 + min(xdata,[],2);

[Ireshika MAST]

Thanks. It worked.....