ylabel changes position with ax.YAxisLocation = 'origin'

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If I use
ax.YAxisLocation = 'origin';
the text of the ylabel changes position, going to the top of the plot and appearing horizontally, instead of being in a vertical posiyion, alongside the y-axis, as in a usual plot:
hold on
scatter(-rand(1,10),rand(1,10),120,'or','filled')
scatter(rand(1,10),rand(1,10),120,'ob','filled')
ax = gca;
ax.YAxisLocation = 'origin';
ylabel('my y-label')
How to have the ylabel in a vertical position, alongside the y-axis, as in a usual plot, when using ax.YAxisLocation = 'origin' ?

Accepted Answer

Star Strider
Star Strider on 24 Jun 2024
The axis labels are text objects with the same properties. (Although not all the properties, such as 'VerticalAlignment' are listed in the ylabel properties, they can still be adressed.)
Try this —
hold on
scatter(-rand(1,10),rand(1,10),120,'or','filled')
scatter(rand(1,10),rand(1,10),120,'ob','filled')
ax = gca;
ax.YAxisLocation = 'origin';
hyl = ylabel('my y-label');
% get(hyl)
pos = hyl.Position;
hyl.Position(2) = mean(ylim); % Use Original Values, Excep[t For The 'y' Coordinate
hyl.Rotation = 90; % Change 'Rotation' Value
hyl.VerticalAlignment = 'middle'; % Set Hidden 'text' Property
There are still other tweaks possible if this is not exactly what you want.
.

More Answers (1)

the cyclist
the cyclist on 24 Jun 2024
Edited: the cyclist on 24 Jun 2024
It's a bit kludgy, but
rng default
hold on
scatter(-rand(1,10),rand(1,10),120,'or','filled')
scatter(rand(1,10),rand(1,10),120,'ob','filled')
ax = gca;
ax.YAxisLocation = 'origin';
yL = ylabel('my y-label');
set(yL,"Rotation",90)
set(yL,"Position",[-0.25 0.5 -1])
Make that first number defining the Position closer to -1, if you had wanted the label all the way off to the left.
  1 Comment
Sim
Sim on 24 Jun 2024
Edited: Sim on 24 Jun 2024
Thanks a lot @the cyclist!! Both your and @Star Strider solutions are great!
This time I would accept the @Star Strider one, since to me, it looks like slightly "more automatic", i.e. I do not need to set manually the values in here:
set(yL,"Position",[-0.25 0.5 -1])

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