checkw: Checking composite based SE models if there are weights in...

In cbsem: Simulation, Estimation and Segmentation of Composite Based Structural Equation Models

Description

checkw determines if there are sets of weights fulfilling the critical relation for the covariance matricies of the composites.

Usage

checkw(B, indicatorx, indicatory, lambdax = FALSE, lambday = FALSE,
  wx = FALSE, wy = FALSE, Sxixi, R2 = NULL)

Arguments

B	(q,q) lower triangular matrix describing the interrelations of the latent variables: b_ij = 1 regression coefficient of eta_j in the regression relation in which eta_i is the depend variable b_ij = 0 if eta_i does not depend on eta_j in a direct way (b_ii = 0 !)
indicatorx	vector describing with which exogenous composite the X-variables are connected
indicatory	vector describing with which endogenous composite the Y-variables are connected
lambdax	vector of loadings for the X-variables in the model or FALSE
lambday	vector of loadings for the Y-variables in the model or FALSE
wx	vector of weights for the X-variables in the model or FALSE
wy	vector of weights for the Y-variables in the model or FALSE
Sxixi	covariance matrix of exogenous composites
R2	vector of coefficients of determination of structural regression equations

Value

out list with components

crit.value	vector of length 2 with the values of the optimisation criterion
wx	vector of length p1 of weights for constructing the exogenous composites
wy	vector of length p2 of weights for constructing the endogenous composites

Examples

   
B <- matrix(c(0,0,0,0,0,0,1,0,0,0,0,0,0,1,0,0,0,0,
              0,1,1,0,0,0,0,1,1,1,0,0,1,0,0,0,1,0),6,6,byrow=TRUE)
indicatorx <- c(1,1,1,1,1)
indicatory <- c(1, 1, 1, 2, 2, 3, 3, 3, 3, 3, 3, 3, 4, 4, 4, 5, 5, 5) 
lambdax <- c(0.73, 0.60, 0.60, 0.77, 0.74) 
lambday <- c(0.79, 0.68, 0.60, 0.90, 0.94, 0.80, 0.65, 0.78, 0.78, 0.74, 
                     0.77, 0.78, 0.80, 0.84, 0.85, 0.86, 0.23, 0.87) 
Sxixi <- matrix(1,1,1)
out <- checkw(B,indicatorx,indicatory,lambdax=TRUE,lambday=TRUE,wx=FALSE,wy=FALSE, Sxixi,R2=NULL)

cbsem documentation built on May 2, 2019, 5:56 a.m.