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Reducer: tidy contrast table

Source: R/reducers.R
reduce_contrasts.Rd

Extracts the fitted contrasts as a long data frame (one row per contrast x voxel), optionally prefixed with the job id so results stack cleanly across subjects. Covers formula contrasts and template-level contrasts (those passed to fmri_template()) alike, with the standard error and test statistic of each. Returns a zero-row frame when no contrasts are defined.

Usage

reduce_contrasts(add_id = TRUE)

Arguments

add_id

Logical; prepend a job_id column. Default TRUE.

Value

A reducer function suitable for fmri_template().

See also

Other reducers: reduce_betas(), reduce_identity(), reduce_write_results()