Subtracting matrices using a for loop

I am currently working with data that is 149x149x60 (60 corresponds to each individual time step). The data is set up to be accumulated precipitation with total rainfall being the final timestep- initial timestep. I am trying to make a loop that can subtract each individual timestep from the previous timestep to give the precipitation total for each specific timestep. Any advice would be appreciated.

Thanks

Answer 1

[James Tursa]

diff(your_data,1,3)