In diff_params["test"], the default experiment arguments create a pysindy.FiniteDifference object manually instead of letting pysindy do so. This means that the axis is initialized to 0 instead of -2. When running with PDE data, that means $du/dt$ is calculated along a spatial axis by accident.
In
diff_params["test"], the default experiment arguments create apysindy.FiniteDifferenceobject manually instead of letting pysindy do so. This means that the axis is initialized to 0 instead of -2. When running with PDE data, that means $du/dt$ is calculated along a spatial axis by accident.