How do I edit this bar graph? Y-axis thickness and ticks

How do I make the y-axis (in the middle) thicker?

Also, how do I get rid of ticks on the right side and add them to the y-axis (the middle)? (Maybe right side of the first group, left side of second group, etc.)

Answer 1

[Star Strider]

See if the YAxisLocation and other Axis Properties and Numeric Ruler properties will do what you want.

[MJ]

For some reason, ax.YAxis.LineWidth only affects the vertical lines on the side (i.e. the box) instead of the Y-axis itself

[Star Strider]

I did not realise that. I did not experiment with it since I thought the location property would have the properties go with it. (The properties need a bit of tweaking, since they can interact in unexpected ways.) Otherwise, to produce a thick line at the centre origin, use the xline function. That would only make the line thicker, not the ticks. Those would likely have to be drawn individually as well, using something like this:

figure
plot([-1 1]*0.02, [0 0]+(0:0.1:1).', '-k', 'LineWidth',2)
xline(0,'-k','LineWidth',2)
Ax = gca;
Ax.YAxisLocation = 'origin';
axis([-1  1    0  1])

That simply overplots the axis. The tick values should remain, and do not need to be changed unless you want to change them.