lavaSearch2 (version 1.0.0)

initVarLink: Normalize var1 and var2

Description

Convert var1 and var2 from formula or covariance to character.

Usage

initVarLink(var1, var2, repVar1 = FALSE, format = "list",
  Slink = c(lava.options()$symbols[1], "~"),
  Scov = lava.options()$symbols[2])
initVarLinks(var1, format = "list", ...)

Arguments

var1

a character indicating the endogeneous variable or a formula

var2

an optional character indicating the exogeneous variable

repVar1

should var1 be duplicated to match var2 length. Only active if format = "list".

format

should the name of the variable be return (format = "list"), a vector of character formula ("txt.formula") or a list of formula ("formula")

Slink

the symbol for regression link

Scov

the symbol for covariance link

...

argument to be passed to lower level functions

Details

See test file test/testthat/test-Reduce.R for examples

Examples

# NOT RUN {
initVarLink(y ~ x1)
initVarLink("y ~ x1")
initVarLink(y ~ x1 + x2)
initVarLink("y ~ x1 + x2")
initVarLink(y ~ x1 + x2, repVar1 = TRUE)
initVarLink(y ~ x1 + x2, repVar1 = TRUE, format = "formula")
initVarLink(y ~ x1 + x2, repVar1 = TRUE, format = "txt.formula")
initVarLink("y", "x1", format = "formula")

initVarLink("y ~ x1:0|1")

initVarLinks(y ~ x1)
initVarLinks("y ~ x1")
initVarLinks(c("y ~ x1","y~ x2"))
initVarLinks(c(y ~ x1,y ~ x2))
initVarLinks(c("y ~ x1","y ~ x2"), format = "formula")
initVarLinks(c(y ~ x1,y ~ x2), format = "formula")
initVarLinks(c("y ~ x1","y~ x2"), format = "txt.formula")
initVarLinks(c(y ~ x1,y ~ x2), format = "txt.formula")
# }