MATLAB: How to rescale the x-axis

Question

Hi,

I am plotting a certain physical quantity over time [fs]. I would like to rescale the x-axis so that it displays time in units of picoseconds (this will then get rid of the annoying power of 10 that appears on the x-axis). I am unsure how to do this. Can someone offer a suggestion?

Thanks!

Answer 1

The simplest way is to change the values in your plot command. Divide all your fs times by 1000 and now they're picosecond times.

instead of: plot(time_vector , function_of_time)

try: plot(time_vector/1000, function_of_time)

You can also force limits on your x-axis both with the xlim and axis commands. You can set your minor and major tick marks with the set command or the plottools UI. But start with the above.