rawDraw: Draw values from vector or matrix objects

In simsem: SIMulated Structural Equation Modeling

Description

Takes one matrix or vector object (SimMatrix or SimVector) and returns a matrix or a vector with numerical values for population parameters. If a matrix is symmetric, it is arbitrarily chosen that parameters on the upper triangular elements are set equal to the parameters on the lower triangular elements.

Usage

rawDraw(simDat, constraint = TRUE, misSpec = TRUE, parMisOnly = FALSE, 
    misOnly = FALSE)

Arguments

simDat	A matrix or vector object (SimMatrix or SimVector)
constraint	If TRUE, then constraints are applied simultaneously
misSpec	If TRUE, then a list is returned with [[1]] parameters with no misspec and [[2]] same parameters + misspec (if any)
parMisOnly	If TRUE, then only the parameters + misspecification is returned
misOnly	If TRUE, then only the misspecification is returned

Value

A matrix (or vector) or a list of matrices (or vectors) which contains the draw result.

Author(s)

Patrick Miller (University of Notre Dame; [e-mail])

Examples

loading <- matrix(0, 7, 3)
loading[1:3, 1] <- NA
loading[4:6, 2] <- NA
loading[1:7, 3] <- NA
loadingVal <- matrix(0, 7, 3)
loadingVal[1:3, 1] <- "runif(1, 0.5, 0.7)"
loadingVal[4:6, 2] <- "runif(1, 0.5, 0.7)"
loadingVal[1:6, 3] <- "runif(1, 0.3, 0.5)"
loadingVal[7, 3] <- 1
loading.mis <- matrix("runif(1, -0.2, 0.2)", 7, 3)
loading.mis[is.na(loading)] <- 0
loading.mis[,3] <- 0
loading.mis[7,] <- 0
loading[1:3, 1] <- "con1"
LY <- bind(loading, loadingVal, misspec=loading.mis)

# Draw values
rawDraw(LY)

# Draw only model parameters containing misspecification
rawDraw(LY, parMisOnly=TRUE)

# Draw only misspecification.
rawDraw(LY, misOnly=TRUE)

simsem documentation built on March 29, 2021, 1:07 a.m.