compute_time_derivative#

movement.kinematics.compute_time_derivative(data, order)[source]#

Compute the time-derivative of an array using numerical differentiation.

This function uses xarray.DataArray.differentiate(), which differentiates the array with the second-order accurate central differences method.

Parameters:

data (xarray.DataArray) – The input data containing time as a required dimension.
order (int) – The order of the time-derivative. For an input containing position data, use 1 to compute velocity, and 2 to compute acceleration. Value must be a positive integer.

Returns:

An xarray DataArray containing the time-derivative of the input data.

Return type:

xarray.DataArray