ValidatePairLinksAreSymmetric {NlsyLinks}

Verifies that the pair relationships are symmetric.

Description

For certain analyses, the pairs links (which can be considered a type of sparse matrix) need to be symmetric. For instance, if there is a row for Subjects 201 and 202 with R=0.5, there should be a second row for Subjects 202 and 201 with R=0.5.

This validation function is useful to some types of DF methods and some spatially-inspired methods.

Usage

ValidatePairLinksAreSymmetric(linksPair)

Arguments

linksPair

The base::data.frame object that should be symmetric

Value

Returns TRUE if symmetric. Throw an error with base::stop() if asymmetric.

Author(s)

Will Beasley

See Also

CreatePairLinksDoubleEntered()

Examples

dsSingleLinks <- data.frame(
  ExtendedID       = c(1, 1, 1, 2),
  SubjectTag_S1    = c(101, 101, 102, 201),
  SubjectTag_S2    = c(102, 103, 103, 202),
  R                = c(.5, .25, .25, .5),
  RelationshipPath = rep("Gen2Siblings", 4)
)
dsSingleOutcomes <- data.frame(
  SubjectTag = c(101, 102, 103, 201, 202),
  DV1        = c(11, 12, 13, 41, 42),
  DV2        = c(21, 22, 23, 51, 52)
)
dsDouble <- CreatePairLinksDoubleEntered(
  outcomeDataset         = dsSingleOutcomes,
  linksPairDataset       = dsSingleLinks,
  outcomeNames           = c("DV1", "DV2"),
  validateOutcomeDataset = TRUE
)
dsDouble # Show the 8 rows in the double-entered pair links
summary(dsDouble) # Summarize the variables

ValidatePairLinksAreSymmetric(dsDouble) # Should return TRUE.