Hi, I encountered an issue with the computed duration and speed values.，
As shown in the figure below, timestamp is the original input. While other output columns are as expected, the duration and speed values appear abnormal — most of them are zeros.
However, if I manually set timestamps = [1, 2, 3, 4, ...], this issue disappears and the duration and speed become normal. Is this the expected behavior? Are there any specific assumptions or preprocessing steps required for the timestamp input? Any suggestions on how to debug or resolve this?
Thanks in advance for your help!
Hi, I encountered an issue with the computed duration and speed values.，
As shown in the figure below, timestamp is the original input. While other output columns are as expected, the duration and speed values appear abnormal — most of them are zeros.
However, if I manually set timestamps = [1, 2, 3, 4, ...], this issue disappears and the duration and speed become normal. Is this the expected behavior? Are there any specific assumptions or preprocessing steps required for the timestamp input? Any suggestions on how to debug or resolve this?
Thanks in advance for your help!