You can set the limits of the x-axis directly using the
xlim
function. If you're plotting (x,y) data, you can easily just set the lower x-limit equivalent to your first data point. Here is a little example to help get you started:
% Generate arbitrary data and plot
numPoints = 15;
x = 1: numPoints;
A = rand(numPoints,1);
plot(x,A)
% Get current x-limits
currentLimits = xlim;
% Set x-limits to ensure graph starts at first data point
xlim([x(1) currentLimits(2)]);
As you can see, the
xlim
function can be used to both get information on the current axes and to set limits. Hope this helps!
