Question

I want to use a words like, let’s say, ‘A’, ‘B’ and ‘C’ on X-axis to show their corresponding properties on Y-axis. How can I write these strings on X-axis instead of numerical data?

Answer 1

Use 'XTick' and 'XTickLabel' properties of the axes handle.
Here’s a simple example:

x = 1:5;
y = rand(size(x));
plot(x, y, 'b')
set(gca, 'XTick',1:5, 'XTickLabel',{'A' 'B' 'C' 'D' 'E'})