Clarification about ADE calculation for different number of seconds

[ahmadchalhoub]

Hello,

I was wondering why you guys use different indexing for pred_traj for ADE generation for 1s compared to 2s & 3s?
In main.py:462, you index pred_traj with [1:pred1_len+1], while for 2s and 3s calculation, you simply use [:pred2_len] and [:pred3_len].

Great work by the way!