Execute a bounded frame block plan — execute_block_plan • fmridataset

Execute a bounded frame block plan

Usage

execute_block_plan(x, plan, FUN, ..., assay = plan$assay)

Arguments

x: The same frame or view used to construct plan.
plan: A frame_block_plan.
FUN: Function receiving values, observation_ids, feature_ids, and the one-row block manifest entry.
...: Additional arguments passed to FUN.
assay: Assay name; defaults to the planned assay.

Value

A list containing one result per planned block.

Examples

frame <- fmri_frame(
  assays = list(signal = memory_source(matrix(seq_len(20), 5, 4))),
  observations = data.frame(.obs_id = sprintf("obs-%d", 1:5)),
  active_assay = "signal"
)
plan <- plan_blocks(frame, memory_budget = 10 * 1024^2)
execute_block_plan(frame, plan, function(values, observation_ids, feature_ids, block) {
  sum(values)
})
#> [[1]]
#> [1] 210
#>