Reduce over subjects in a single pass
Usage
group_reduce(
gd,
.map,
.reduce,
.init,
order_by = NULL,
on_error = c("stop", "warn", "skip"),
...
)Arguments
- gd
An
fmri_group.- .map
Function applied to each subject row. Should return an object that can be combined by
.reduce.- .reduce
Binary function combining the accumulator and the mapped value.
- .init
Initial accumulator value.
- order_by
Optional ordering column.
- on_error
Error handling policy: "stop", "warn", or "skip".
- ...
Additional arguments passed to
.map.