Change axis values of an already existing figure

I have a figure that has axis already and numbers in them. I wish to change the axis values display values so that they read differently. I only have the .fig file and the numbers on the axis don't matter to much, so changing them is only for better readability (say put in in a positive scale from 0 to 10. How does one do that without screwing up the figure?

Answer 1

[Walter Roberson]

ax = findobj(0, 'type', 'axes', '-or', 'type', 'matlab.graphics.axis.Axes');
if isempty(ax); error('No axes found'); end
if length(ax) > 1; error('Multiple axes found'); end
xticks(ax, [new list of x tick positions])
set(ax, 'XTickLabel', {'0' '1' '2' '3'});

[Brando Miranda]

note I don't have anything but the .fig file...how do I start using it in the first place?

[Walter Roberson]

fig = openfig('NameOfFile.fig');
ax = findobj(fig, 'type', 'axes', '-or', 'type', 'matlab.graphics.axis.Axes');

[Brando Miranda]

I am getting error:

Undefined function or variable
'xtick'.

any ideas?

[Brando Miranda]

Ok Im updating to 2018a and see if that fixes it...

[Walter Roberson]

Should have been xticks() instead of xtick()

In any case you can

set(ax, 'XTick', [new list of x tick positions], 'XTickLabel', {'0', '1', '2', ....})

[Brando Miranda]

hmmm I'm trying to change the other axis...its changing the wrong one.

[Brando Miranda]

I think it would be nice to note to future readers what ur code does with some comments.

    xticks(ax, [new list of x tick positions])

is the "real" actual values on the axis and:

    set(ax, 'XTickLabel', {'0' '1' '2' '3'});

is the new display "labels" that will appear on the figure. I made the `[new list of x tick positions]` be the same length as `{'0' '1' '2' '3'}`, one new display label for each true value on the axis.

thanks!