Creates per-time-point weights \(w_t \in [0, 1]\) by smoothly combining framewise displacement (FD), DVARS, and spike/outlier scores. Each series is transformed through a soft logistic ramp so that values beyond the specified thresholds receive progressively lower weights instead of hard 0/1 decisions.
Usage
make_time_weights(
fd = NULL,
dvars = NULL,
spike = NULL,
fd_thr = 0.5,
dvars_z = 2.5,
spike_z = 5,
fd_soft = 0.1,
dvars_soft = 0.25,
combine = c("min", "prod")
)Arguments
- fd
Optional numeric vector of framewise displacement values.
- dvars
Optional numeric vector of DVARS values.
- spike
Optional numeric vector with spike/outlier magnitudes.
- fd_thr
Threshold (in mm) where FD weights start to drop (default 0.5).
- dvars_z
Z-threshold applied to the standardized DVARS series (default 2.5).
- spike_z
Z-threshold applied to the standardized spike series (default 5).
- fd_soft
Logistic softness (in mm) controlling the slope around
fd_thr.- dvars_soft
Logistic softness for the DVARS z-scores.
- combine
Either
"min"(take the minimum weight per TR) or"prod"(multiply all weights).