Hi,
I am new to python and would like to know how I can efficiently calculate the velocity from a list within a list.
I have a variable x_pos that contains the positions of 6 different people sampled at 10000 points in time. The timestep between all samples is constant = 0.1s. Running the following code thus returns the answer 6:
print(len(x_pos))
However if I take the positions of only the first person and check the length of that list:
x_pos1 = x_pos[0]
print(len(x_pos1))
The answer is 10000. This thus returns the length of the list within my original list.
I would like to know how I can calculate the instantaneous velocity of all persons efficiently, where the result is again a list within a list. As a final result I would thus like to have a main list of length 6, where each of the 6 lists inside the main list are of length 9999.
Thanks for your help!