Signals from different channel groups and with different sample rate cannot be compared and used for calculations due to a dimension mismatch. Therefore, you must specify the interpolation grid before starting an evaluation.

Pay attention when choosing the grid value: If the grid is too small, the calculations take much longer. For grids <0.01s, limited memory can become an issue. If the grid is too large, some events are not detected. Take into consideration the time rate of the events you are interested in and adjust the grid appropriately.