ylim error "Array indices must be positive integers or logical values"

Hi everyone,

When I try to set the y axis limits using the code below, I get an error message. Please could someone suggest why this is happening? The code works totally fine without the ylim instruction.

figure

subplot(4,2,8);

plot(powerpc,abs(depth50mms_09),powerpc,abs(depth60mms_09),powerpc,abs(depth70mms_09),powerpc,abs(depth80mms_09),powerpc,abs(depth90mms_09),powerpc,abs(depth100mms_09))

ylabel('Track Depth/um');

xlabel({'Laser Power/mW';'DR = 0.9'})

M=7;

% pick some colormap and apply it to the colororder property

mycolortable = parula(M);

ylim([0 5])

set(gca,'colororder',mycolortable)

Error message:

Array indices must be positive integers or logical values.

Error in depthprogABSvaluesdiscarded (line 12)

ylim([0 5])

Cheers

Answer 1

[Voss]

You have a variable called ylim, so the instruction ylim([0 5]) means to get the elements in ylim at index 0 and index 5, which is in error since indexes start at 1 in MATLAB. Do clear('ylim') to clear the variable so that the built-in function ylim() will run instead, or do clear all at the top of your script.

[Em]

Thanks so much! This solution worked.