Create a membership matrix

Usage

membership_matrix(data)

Arguments

data: A membership_tbl object containing membership data in long format, with columns for source, target, membership and interpreter values.

Value

A membership_matrix object: a numeric array with dimensions [source, target, interpreter].

Details

Returns the membership values as one source by target matrix per interpreter, ready for calc_similarity(). Targets an interpreter did not use for a source they assessed are filled with 0, and source units an interpreter did not assess are left as NA. Repeated targets for the same source and interpreter are summed. Rows with missing membership values are dropped with a warning.

Future Enhancements

The function is designed to be flexible and can be extended in the future. Users may filter by round of elicitation, or add round as a fourth dimension.

Author

Abhimanyu Raj Singh

Examples

# Example usage with the TASVEG_xref dataset
data("TASVEG_xref")
TASVEG_memb <- membership_tbl(
  TASVEG_xref,
  source_id = "VEGCODE",
  target_id = "efg",
  membership = "memb",
  interpreter = "interp"
)
membership_matrix(TASVEG_memb)
#> Warning: Dropped 1 row with missing membership values.
#> <membership_matrix> 156 sources x 44 targets x 4 interpreters
#> • Frightened Flamingo: 156 source units assessed
#> • Pointless Panda: 156 source units assessed
#> • Tantalising Tarantula: 156 source units assessed
#> • Worrysome Wren: 156 source units assessed
#> Use `unclass(data)[source, target, interpreter]` to view values.