MATLAB: How to set the y-axis values to be only integers

y-axis integers

Hi everybody,

If I have the following vector

x = [1 1 1 1 1 2 2 2 2 1 1 1 1 2 2 2 2 2 2 3 3 3 3];

and I want to create a plot on which the y-axis will contain integers between 0 and 4 (including 0 and 4), without showing any numbers in between, such as 2.8 or 1.2 for example. Hence, plot(x) doesn't work on that case. Could someone help on this please? Thanks in advance.

Best Answer

plot(x)
a = axis;
axis([a(1) a(2) 0 4]);
set(gca, 'YTick', 0:4)

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MATLAB: Plot 3D Vector

Try this

ax = axes();
view(ax,[-120 30]);
grid on;
hold(ax);
ax.XDir = 'reverse';
ax.YDir = 'reverse';
ax.XLim = [0 8];
ax.YLim = [0 8];
ax.ZLim = [0 8];
ax.XTick = 0:2:8;
ax.YTick = 0:2:8;
ax.ZTick = 0:2:8;
origin = [2 2 0];
xaxis = [3 2 0];
yaxis = [2 1 0];
zaxis = [2 2 1];
plot3([origin(1) xaxis(1)], [origin(2) xaxis(2)], [origin(3) xaxis(3)], 'r', ...
    'LineWidth', 3);
plot3([origin(1) yaxis(1)], [origin(2) yaxis(2)], [origin(3) yaxis(3)], 'b', ...
    'LineWidth', 3);
plot3([origin(1) zaxis(1)], [origin(2) zaxis(2)], [origin(3) zaxis(3)], 'g', ...
    'LineWidth', 3);
text(ax, 2.2, 1.7, 0, 'A');
xlabel('x-ekseni');
ylabel('y-ekseni');
zlabel('z-ekseni');

MATLAB: Y-axis scale

Not sure the effect you're really after but

set(gca,'YTick',[1 2 4 8 16 18])

which can be

    set(gca,'YTick',[2.^[0:4] 18])

if you're looking for more concise formulation for the values.

If you intend the ticks to be spaced evenly but labeled otherwise, have to use N (in this case 6) tick values spaced as desired and then 'xticklabel' to write the desired label value at the respective location.

Best Answer

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MATLAB: Plot 3D Vector

MATLAB: Y-axis scale

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