How many times have you done something like this?
% BEGIN draw a horizontal line
xMin = 0; xMax = 10; % the current extents of the x axis
yVal = 12;
hold on
plot([xMin xMax], [yVal, yVal])
hold off
% END draw a horizontal line
Hline and Vline are simple but useful tools that draw a horizontal line at the given Y value from the left most extent of the axes to the right most. There is a similar command for vertical lines. You can replace the above with:
hline(yVal)
and be done with it.
By
Doug Hull
Doug first used MATLAB in 1994, could not figure it out until he got some help in 1995. He is now dedicated to making sure that no one else wastes a year of their life not knowing MATLAB like he did.
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