standardizedCoefficients {sem} | R Documentation |
These functions calculate standardized regression coefficients
for structural equation models. The function stdCoef
is
simply an abbreviation for standardizedCoefficients
.
standardizedCoefficients(object, digits = 5, oneheaded=TRUE, twoheaded=TRUE) stdCoef(...)
object |
an object of class |
digits |
number of digits for printed output. |
oneheaded |
standardize path coefficients? Default is |
twoheaded |
standardize variances and covariances? Default is |
... |
arguments to pass to |
Returns a data frame with the coefficients, labelled both by parameter names and by arrows in the path diagram for the model.
John Fox jfox@mcmaster.ca and Adam Kramer
Bollen, K. A. (1989) Structural Equations With Latent Variables. Wiley.
# In the first example, readMoments() and specifyModel() read from the # input stream. This example cannot be executed via example() but can be entered # at the command prompt. The example is repeated using file input; # this example can be executed via example(). ## Not run: # Duncan, Haller, and Portes peer-influences model R.DHP <- readMoments(diag=FALSE, names=c("ROccAsp", "REdAsp", "FOccAsp", "FEdAsp", "RParAsp", "RIQ", "RSES", "FSES", "FIQ", "FParAsp")) .6247 .3269 .3669 .4216 .3275 .6404 .2137 .2742 .1124 .0839 .4105 .4043 .2903 .2598 .1839 .3240 .4047 .3054 .2786 .0489 .2220 .2930 .2407 .4105 .3607 .0186 .1861 .2707 .2995 .2863 .5191 .5007 .0782 .3355 .2302 .2950 .0760 .0702 .2784 .1988 .1147 .1021 .0931 -.0438 .2087 model.dhp <- specifyModel() RParAsp -> RGenAsp, gam11, NA RIQ -> RGenAsp, gam12, NA RSES -> RGenAsp, gam13, NA FSES -> RGenAsp, gam14, NA RSES -> FGenAsp, gam23, NA FSES -> FGenAsp, gam24, NA FIQ -> FGenAsp, gam25, NA FParAsp -> FGenAsp, gam26, NA FGenAsp -> RGenAsp, beta12, NA RGenAsp -> FGenAsp, beta21, NA RGenAsp -> ROccAsp, NA, 1 RGenAsp -> REdAsp, lam21, NA FGenAsp -> FOccAsp, NA, 1 FGenAsp -> FEdAsp, lam42, NA RGenAsp <-> RGenAsp, ps11, NA FGenAsp <-> FGenAsp, ps22, NA RGenAsp <-> FGenAsp, ps12, NA ROccAsp <-> ROccAsp, theta1, NA REdAsp <-> REdAsp, theta2, NA FOccAsp <-> FOccAsp, theta3, NA FEdAsp <-> FEdAsp, theta4, NA sem.dhp <- sem(model.dhp, R.DHP, 329, fixed.x=c('RParAsp', 'RIQ', 'RSES', 'FSES', 'FIQ', 'FParAsp')) standardizedCoefficients(sem.dhp) ## End(Not run) # The following example can be executed via example(): etc <- file.path(.path.package(package="sem")[1], "etc") # path to data and model files (R.DHP <- readMoments(file=file.path(etc, "R-DHP.txt"), diag=FALSE, names=c("ROccAsp", "REdAsp", "FOccAsp", "FEdAsp", "RParAsp", "RIQ", "RSES", "FSES", "FIQ", "FParAsp"))) (model.dhp <- specifyModel(file=file.path(etc, "model-DHP.txt"))) (sem.dhp <- sem(model.dhp, R.DHP, 329, fixed.x=c('RParAsp', 'RIQ', 'RSES', 'FSES', 'FIQ', 'FParAsp'))) standardizedCoefficients(sem.dhp)