Black axes for yyaxis (not default blue and orange)

I'm having a hard time making the two y axes in my yyaxis plot black instead of the default blue left axis and orange left axis. I think I need to call the axis handle for each but I'm not sure how to define them for multiple y axes.

figure

yyaxis left

plot(btimestamp(k1:k2),Bmean3637(k1:k2),'k');

ylabel('BEUTI')

ylim([-5 40])

yyaxis right

plot(btimestamp(k1:k2),t_mean(k1:k2),'g-');

hold on;

plot(btimestamp(k1:k2),b_mean(k1:k2),'b-');

ylabel('Mean Daily pH')

ylim([7.2 8.2])

legend('BEUTI','Upper pH','Lower pH')

datetick

set(AX,{'ycolor'},{'r';'b'})

Answer 1

[Star Strider]

Try this:

figure
yyaxis left
plot((1:10), rand(1, 10), 'g')
yyaxis right
plot((5:15), sin((5:15)/5), 'r')
ax = gca;
ax.YAxis(1).Color = 'k';
ax.YAxis(2).Color = 'k';

Experiment to get the result you want.

[maitehar]

I just had the same issue and this worked perfectly. Thank you :)

[Star Strider]

My pleasure!

[Bin Jiang]

or a simpler version

set(gca,'YColor','k');

Cheers,

[Sara Fawal]

Hello Star,

Is there a way to set ALL the Y axis colors in a subplot to black using the findall command?

I want to do this: set(findall(gcf, 'ALL Y Axis Colors', 'k'))

Can it be done.

Thank you

Answer 2

[Julian Dönges]

It is also possible to define the color order beforehand, see yyaxis documentation:

colororder({'b','m'})

yyaxis left
y = [1 2; 3 4];
plot(y)

yyaxis right
z = [4 3; 2 1];
plot(z)
legend

To make both sides black, you would write the first line as

colororder({'k','k'})

[Ryan Budde]

This solution does not work on a tiledlayout figure

[Julian Dönges]

@Ryan Budde It should work if you pass the tile handle to colororder like this:

tiledlayout("flow");

t1 = nexttile;
colororder(t1,{'k','k'})
yyaxis left
y = [1 2; 3 4];
plot(y)
yyaxis right
z = [4 3; 2 1];
plot(z)
legend

t2 = nexttile;
colororder(t2,{'b','m'})
yyaxis left
y = [1 2; 3 4];
plot(y)
yyaxis right
z = [4 3; 2 1];
plot(z)
legend

[Jingfeng]

"nextile" is what?

[DGM]

nexttile() creates axes in a tiledlayout. The output is a handle.