R/princomp.R

In semPlot: Path Diagrams and Visual Analysis of Various SEM Packages' Output

# semPaths.princomp <- function(object,...) 
# {
#   invisible(semPaths(semPlotModel(object),...))
# }
# 


### SINGLE GROUP MODEL ###
semPlotModel.princomp <- function(object, ...)
{
  
  # Check if object is of class "sem":
  if (!"princomp"%in%class(object)) stop("Input must be a 'princomp' object")
  
  
  # Extract model:
  mod <- semPlotModel(loadings(object))
  manNames <- mod@Vars$name[mod@Vars$manifest]
  
  # Fix:
  mod@Pars[c("lhs","rhs")] <- mod@Pars[c("rhs","lhs")]
  mod@Pars$edge <- "->"
    
  return(mod)
}