CreatePairLinks: Creates a pairs linking file.

In NlsyLinks: Utilities and kinship information for research with the NLSY

Description

Creates a linking file for BG designs using this file structure (e.g., DF analysis, other ACE modeling). A DF analysis requires a double-entered file that contains the R value for the pair, and their two outcome variable values.

CreatePairLinksDoubleEnteredWithNoOutcomes is intended to be a primarily a helper function for CreateSpatialNeighbours.

Usage

CreatePairLinksDoubleEntered(outcomeDataset, linksPairDataset, outcomeNames,
   linksNames = c("ExtendedID", "R", "RelationshipPath"), validateOutcomeDataset = TRUE,
   subject1Qualifier = "_S1", subject2Qualifier = "_S2")

 CreatePairLinksSingleEntered(outcomeDataset, linksPairDataset, outcomeNames,
    linksNames = c("ExtendedID", "R", "RelationshipPath"), validateOutcomeDataset = TRUE,
    subject1Qualifier = "_S1", subject2Qualifier = "_S2")

 CreatePairLinksDoubleEnteredWithNoOutcomes(linksPairDataset,
    linksNames = c("ExtendedID", "R", "RelationshipPath"))

Arguments

outcomeDataset	A data frame containing the outcome variable(s)
linksPairDataset	A data frame containing the SubjectTags of each subject in the pair and their R coefficient.
outcomeNames	The column names of the outcome variable(s)
linksNames	The column names desired to be prseent in the newly created data frame. SubjectTag_S1 and SubjectTag_S2 are included automatically.
validateOutcomeDataset	Indicates if characteristics of the outcomeDataset should be validated.
subject1Qualifier	Indicates how the outcome variable for the pair's first subject is distinguished from the other subject. The default is _S1.
subject2Qualifier	Indicates how the outcome variable for the pair's second subject is distinguished from the other subject. The default is _S2.

Author(s)

Will Beasley

References

For more information about a DF analysis, see Rodgers, Joseph Lee, & Kohler, Hans-Peter (2005). Reformulating and simplifying the DF analysis model. Behavior Genetics, 35 (2), 211-217.

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.

NlsyLinks documentation built on May 2, 2019, 4:36 p.m.