simple for loop for 6 hourly timestep.

How can I create matlab code for following simple logic?

for single day, 6hrly data, there are 4 time step.

no_of_timestep=4;

0hr 6hr 12hr 18hr x1 x2 x3 x4

x1=x1, x2=x2-x1, x3=x3-x2, x4=x4-x3,

Thanks.

Kind regards.

[The Matlab Spot]

do you mean creating possible values for x

x = [0:6:18];