andrei-1 wrote: Sat Jul 09, 2022 8:37 pm A successful attempt to iron TDFI without smoothing. The period of this TDFI*4= the period of the original TDFI. If all TDFI are on one side of zero, the furthest (green, red) is taken. If the TDFI is from different sides, their average is taken (gray line). There are two trend buffers.