Compose source-to-target frame links — compose_frame

The target of first must be the source of second, and their addressed axes must agree. Explicit ID maps are joined through the intermediate IDs. Feature operators are composed as second %*% first without changing link direction.

Usage

compose_frame_links(first, second, type = NULL, metadata = list())

Arguments

first: A canonical source-to-intermediate frame_link.
second: A canonical intermediate-to-target frame_link.
type: Result link type. It may be omitted when both inputs have the same type.
metadata: Unaligned result-link metadata.

Value

A canonical source-to-target frame_link.

Examples

first <- frame_link("bold", "beta", type = "derivation")
second <- frame_link("beta", "summary", type = "derivation")
composed <- compose_frame_links(first, second)
composed$source
#> [1] "bold"
composed$target
#> [1] "summary"