Extract the posterior variance-covariance matrix of model parameters from a
fitted INLAvaan model.
Usage
# S4 method for class 'INLAvaan'
vcov(object, type = c("lavaan", "theta"), ...)Arguments
- object
An object of class INLAvaan.
- type
Character.
"lavaan"(default) returns the posterior covariance matrix of the model parameters computed from posterior samples (matching lavaan output)."theta"returns the Laplace approximation covariance in the internal parameterisation.- ...
Currently unused.
Examples
# \donttest{
HS.model <- "
visual =~ x1 + x2 + x3
textual =~ x4 + x5 + x6
speed =~ x7 + x8 + x9
"
utils::data("HolzingerSwineford1939", package = "lavaan")
fit <- acfa(HS.model, HolzingerSwineford1939, std.lv = TRUE, nsamp = 100,
test = "none", verbose = FALSE)
# Default: posterior covariance of lavaan parameters
vcov(fit)
#> visual=~x1 visual=~x2 visual=~x3 textual=~x4
#> visual=~x1 6.847538e-03 -1.408150e-03 -8.143327e-04 1.001825e-03
#> visual=~x2 -1.408150e-03 5.642952e-03 2.035197e-03 1.658913e-04
#> visual=~x3 -8.143327e-04 2.035197e-03 6.691937e-03 5.407233e-04
#> textual=~x4 1.001825e-03 1.658913e-04 5.407233e-04 2.415512e-03
#> textual=~x5 1.390069e-03 1.769288e-05 9.261806e-06 1.427198e-03
#> textual=~x6 5.910155e-04 1.857367e-04 6.565568e-04 6.890950e-04
#> speed=~x7 6.752504e-04 -3.362636e-04 -5.208086e-04 -2.756888e-04
#> speed=~x8 9.373058e-04 2.876865e-04 -8.560006e-04 1.192257e-05
#> speed=~x9 -5.100733e-04 1.568328e-04 5.200306e-04 5.130170e-04
#> x1~~x1 -7.781854e-03 4.731633e-03 4.162375e-03 -5.439575e-04
#> x2~~x2 2.340740e-03 -1.890162e-03 -1.903154e-03 -4.052933e-04
#> x3~~x3 2.840434e-03 -2.292827e-03 -4.572583e-03 -1.807012e-04
#> x4~~x4 -2.891389e-04 7.584997e-05 1.596226e-05 -6.723007e-04
#> x5~~x5 -2.267611e-04 1.285443e-05 3.660103e-04 4.299329e-04
#> x6~~x6 5.005674e-05 -2.103507e-04 -4.606521e-04 2.741039e-04
#> x7~~x7 -1.468546e-03 1.441765e-04 5.519827e-05 -7.424792e-04
#> x8~~x8 -4.805938e-04 -5.174982e-04 1.551834e-04 2.780815e-04
#> x9~~x9 -7.251153e-05 8.122117e-05 -1.430670e-03 -3.895174e-04
#> visual~~textual 1.872738e-04 3.274285e-04 -9.112356e-05 2.737969e-04
#> visual~~speed -2.005437e-03 5.195984e-04 1.352243e-03 -2.214314e-04
#> textual~~speed -6.618395e-04 1.519328e-04 -1.316690e-07 7.674689e-05
#> textual=~x5 textual=~x6 speed=~x7 speed=~x8
#> visual=~x1 1.390069e-03 5.910155e-04 6.752504e-04 9.373058e-04
#> visual=~x2 1.769288e-05 1.857367e-04 -3.362636e-04 2.876865e-04
#> visual=~x3 9.261806e-06 6.565568e-04 -5.208086e-04 -8.560006e-04
#> textual=~x4 1.427198e-03 6.890950e-04 -2.756888e-04 1.192257e-05
#> textual=~x5 4.150867e-03 1.392171e-03 1.855625e-04 -8.913121e-04
#> textual=~x6 1.392171e-03 1.963736e-03 -1.687588e-05 -3.348509e-04
#> speed=~x7 1.855625e-04 -1.687588e-05 5.815512e-03 2.332412e-03
#> speed=~x8 -8.913121e-04 -3.348509e-04 2.332412e-03 5.372127e-03
#> speed=~x9 3.411031e-04 -1.317800e-04 -1.137785e-03 -1.415352e-03
#> x1~~x1 -5.676453e-04 5.112146e-04 -1.652006e-03 -1.262937e-03
#> x2~~x2 3.255623e-04 -3.875073e-04 5.794225e-04 1.625384e-04
#> x3~~x3 -1.876977e-04 -6.387372e-04 1.433669e-03 1.705248e-03
#> x4~~x4 1.781187e-04 1.271650e-04 -4.478255e-05 -3.623527e-04
#> x5~~x5 -1.091583e-03 -3.766323e-04 -5.220760e-04 2.967084e-04
#> x6~~x6 -8.605878e-05 -3.684909e-04 1.928070e-04 3.575923e-04
#> x7~~x7 -1.398350e-03 -5.990964e-04 -3.447550e-03 -8.282952e-04
#> x8~~x8 9.964738e-04 -2.477096e-05 -1.866017e-03 -4.132572e-03
#> x9~~x9 -7.845758e-04 -4.095310e-04 2.715056e-03 3.441206e-03
#> visual~~textual 1.293621e-04 1.631539e-04 8.591030e-05 5.643504e-04
#> visual~~speed -9.450728e-04 -5.149098e-04 -1.619270e-03 -1.945521e-03
#> textual~~speed -2.324567e-04 -9.841289e-05 -4.020656e-04 -3.171088e-04
#> speed=~x9 x1~~x1 x2~~x2 x3~~x3
#> visual=~x1 -0.0005100733 -0.0077818536 0.0023407403 2.840434e-03
#> visual=~x2 0.0001568328 0.0047316332 -0.0018901621 -2.292827e-03
#> visual=~x3 0.0005200306 0.0041623755 -0.0019031536 -4.572583e-03
#> textual=~x4 0.0005130170 -0.0005439575 -0.0004052933 -1.807012e-04
#> textual=~x5 0.0003411031 -0.0005676453 0.0003255623 -1.876977e-04
#> textual=~x6 -0.0001317800 0.0005112146 -0.0003875073 -6.387372e-04
#> speed=~x7 -0.0011377846 -0.0016520062 0.0005794225 1.433669e-03
#> speed=~x8 -0.0014153520 -0.0012629370 0.0001625384 1.705248e-03
#> speed=~x9 0.0062705407 0.0014321794 -0.0014666698 -1.006720e-03
#> x1~~x1 0.0014321794 0.0158123090 -0.0053961174 -7.339164e-03
#> x2~~x2 -0.0014666698 -0.0053961174 0.0131854041 1.479064e-03
#> x3~~x3 -0.0010067202 -0.0073391640 0.0014790638 1.121468e-02
#> x4~~x4 0.0001223883 0.0004922678 -0.0003942086 -5.382257e-05
#> x5~~x5 0.0001031556 -0.0002631744 0.0003294796 -5.441343e-04
#> x6~~x6 -0.0002188917 -0.0005743062 0.0004108519 8.775253e-04
#> x7~~x7 0.0017765524 0.0016869353 -0.0007293796 -1.217698e-04
#> x8~~x8 0.0032259731 0.0003453078 0.0002181123 -7.824121e-04
#> x9~~x9 -0.0051261061 -0.0010949478 0.0004404264 2.316625e-03
#> visual~~textual -0.0003398706 -0.0005108709 -0.0002441325 6.056836e-04
#> visual~~speed 0.0031726878 0.0033784557 -0.0001196823 -1.804271e-03
#> textual~~speed 0.0008153564 0.0009373225 -0.0004022549 -2.231427e-04
#> x4~~x4 x5~~x5 x6~~x6 x7~~x7
#> visual=~x1 -2.891389e-04 -2.267611e-04 5.005674e-05 -1.468546e-03
#> visual=~x2 7.584997e-05 1.285443e-05 -2.103507e-04 1.441765e-04
#> visual=~x3 1.596226e-05 3.660103e-04 -4.606521e-04 5.519827e-05
#> textual=~x4 -6.723007e-04 4.299329e-04 2.741039e-04 -7.424792e-04
#> textual=~x5 1.781187e-04 -1.091583e-03 -8.605878e-05 -1.398350e-03
#> textual=~x6 1.271650e-04 -3.766323e-04 -3.684909e-04 -5.990964e-04
#> speed=~x7 -4.478255e-05 -5.220760e-04 1.928070e-04 -3.447550e-03
#> speed=~x8 -3.623527e-04 2.967084e-04 3.575923e-04 -8.282952e-04
#> speed=~x9 1.223883e-04 1.031556e-04 -2.188917e-04 1.776552e-03
#> x1~~x1 4.922678e-04 -2.631744e-04 -5.743062e-04 1.686935e-03
#> x2~~x2 -3.942086e-04 3.294796e-04 4.108519e-04 -7.293796e-04
#> x3~~x3 -5.382257e-05 -5.441343e-04 8.775253e-04 -1.217698e-04
#> x4~~x4 2.565543e-03 -8.947624e-04 -5.231026e-04 -1.911204e-04
#> x5~~x5 -8.947624e-04 3.401601e-03 -1.737181e-04 8.560079e-04
#> x6~~x6 -5.231026e-04 -1.737181e-04 1.840363e-03 -7.513063e-05
#> x7~~x7 -1.911204e-04 8.560079e-04 -7.513063e-05 1.064793e-02
#> x8~~x8 6.991976e-04 -3.442621e-04 -4.098808e-04 1.430151e-03
#> x9~~x9 1.487600e-04 -3.200010e-04 8.604165e-04 -2.536225e-03
#> visual~~textual -7.541519e-04 6.033241e-04 -3.666610e-06 2.354149e-04
#> visual~~speed 2.094132e-04 6.595386e-05 -9.143986e-05 2.430653e-03
#> textual~~speed 1.721549e-04 -2.196303e-04 -1.553165e-04 2.435339e-03
#> x8~~x8 x9~~x9 visual~~textual visual~~speed
#> visual=~x1 -4.805938e-04 -7.251153e-05 1.872738e-04 -2.005437e-03
#> visual=~x2 -5.174982e-04 8.122117e-05 3.274285e-04 5.195984e-04
#> visual=~x3 1.551834e-04 -1.430670e-03 -9.112356e-05 1.352243e-03
#> textual=~x4 2.780815e-04 -3.895174e-04 2.737969e-04 -2.214314e-04
#> textual=~x5 9.964738e-04 -7.845758e-04 1.293621e-04 -9.450728e-04
#> textual=~x6 -2.477096e-05 -4.095310e-04 1.631539e-04 -5.149098e-04
#> speed=~x7 -1.866017e-03 2.715056e-03 8.591030e-05 -1.619270e-03
#> speed=~x8 -4.132572e-03 3.441206e-03 5.643504e-04 -1.945521e-03
#> speed=~x9 3.225973e-03 -5.126106e-03 -3.398706e-04 3.172688e-03
#> x1~~x1 3.453078e-04 -1.094948e-03 -5.108709e-04 3.378456e-03
#> x2~~x2 2.181123e-04 4.404264e-04 -2.441325e-04 -1.196823e-04
#> x3~~x3 -7.824121e-04 2.316625e-03 6.056836e-04 -1.804271e-03
#> x4~~x4 6.991976e-04 1.487600e-04 -7.541519e-04 2.094132e-04
#> x5~~x5 -3.442621e-04 -3.200010e-04 6.033241e-04 6.595386e-05
#> x6~~x6 -4.098808e-04 8.604165e-04 -3.666610e-06 -9.143986e-05
#> x7~~x7 1.430151e-03 -2.536225e-03 2.354149e-04 2.430653e-03
#> x8~~x8 7.354096e-03 -4.951660e-03 -2.108042e-04 3.576674e-03
#> x9~~x9 -4.951660e-03 8.582390e-03 6.919117e-04 -3.321837e-03
#> visual~~textual -2.108042e-04 6.919117e-04 3.191776e-03 3.510506e-04
#> visual~~speed 3.576674e-03 -3.321837e-03 3.510506e-04 7.506007e-03
#> textual~~speed 1.735450e-03 -8.016008e-04 3.510756e-04 2.446221e-03
#> textual~~speed
#> visual=~x1 -6.618395e-04
#> visual=~x2 1.519328e-04
#> visual=~x3 -1.316690e-07
#> textual=~x4 7.674689e-05
#> textual=~x5 -2.324567e-04
#> textual=~x6 -9.841289e-05
#> speed=~x7 -4.020656e-04
#> speed=~x8 -3.171088e-04
#> speed=~x9 8.153564e-04
#> x1~~x1 9.373225e-04
#> x2~~x2 -4.022549e-04
#> x3~~x3 -2.231427e-04
#> x4~~x4 1.721549e-04
#> x5~~x5 -2.196303e-04
#> x6~~x6 -1.553165e-04
#> x7~~x7 2.435339e-03
#> x8~~x8 1.735450e-03
#> x9~~x9 -8.016008e-04
#> visual~~textual 3.510756e-04
#> visual~~speed 2.446221e-03
#> textual~~speed 4.183431e-03
# Internal parameterisation (Laplace approximation)
vcov(fit, type = "theta")
#> visual=~x1 visual=~x2 visual=~x3 textual=~x4
#> visual=~x1 6.944819e-03 -9.228843e-04 -9.935751e-04 3.389857e-04
#> visual=~x2 -9.228843e-04 6.568863e-03 1.577215e-03 1.410972e-04
#> visual=~x3 -9.935751e-04 1.577215e-03 6.061736e-03 1.941726e-04
#> textual=~x4 3.389857e-04 1.410972e-04 1.941726e-04 3.223624e-03
#> textual=~x5 3.141650e-04 2.000129e-04 2.591496e-04 1.688801e-03
#> textual=~x6 2.546537e-04 1.692562e-04 2.206257e-04 1.376938e-03
#> speed=~x7 3.049172e-04 7.658901e-05 5.006757e-05 8.922238e-05
#> speed=~x8 3.435120e-04 1.427343e-04 4.258362e-05 9.357838e-05
#> speed=~x9 6.233622e-05 1.250035e-04 3.071841e-04 7.405772e-05
#> x1~~x1 -1.222508e-02 5.410147e-03 6.403818e-03 -1.279744e-04
#> x2~~x2 1.466413e-03 -2.090859e-03 -9.100595e-04 2.237214e-05
#> x3~~x3 3.072863e-03 -1.610649e-03 -3.944877e-03 3.916836e-05
#> x4~~x4 -2.114624e-04 1.400470e-04 1.444548e-04 -1.889064e-03
#> x5~~x5 9.341801e-05 -6.713443e-05 -6.283285e-05 5.955463e-04
#> x6~~x6 1.154535e-04 -7.284124e-05 -8.025778e-05 6.602594e-04
#> x7~~x7 -1.669503e-04 5.012766e-05 1.437528e-04 -1.903188e-05
#> x8~~x8 -3.329928e-04 -4.342221e-05 3.783558e-04 -8.334976e-06
#> x9~~x9 3.507098e-04 -1.901485e-05 -3.605765e-04 2.021852e-05
#> visual~~textual 9.461949e-04 2.082300e-05 -3.796066e-04 7.715873e-04
#> visual~~speed -4.825363e-04 3.751536e-04 9.875436e-04 2.256550e-04
#> textual~~speed 4.314192e-04 2.654701e-04 4.026555e-04 4.093776e-04
#> textual=~x5 textual=~x6 speed=~x7 speed=~x8
#> visual=~x1 3.141650e-04 2.546537e-04 3.049172e-04 3.435120e-04
#> visual=~x2 2.000129e-04 1.692562e-04 7.658901e-05 1.427343e-04
#> visual=~x3 2.591496e-04 2.206257e-04 5.006757e-05 4.258362e-05
#> textual=~x4 1.688801e-03 1.376938e-03 8.922238e-05 9.357838e-05
#> textual=~x5 3.930062e-03 1.578490e-03 7.437476e-05 9.582845e-05
#> textual=~x6 1.578490e-03 2.898913e-03 7.457536e-05 9.654040e-05
#> speed=~x7 7.437476e-05 7.457536e-05 5.475475e-03 1.898565e-03
#> speed=~x8 9.582845e-05 9.654040e-05 1.898565e-03 5.612839e-03
#> speed=~x9 1.034695e-04 6.539474e-05 -8.867327e-04 -1.687832e-03
#> x1~~x1 6.481860e-05 7.383460e-05 -3.332406e-04 -3.390605e-04
#> x2~~x2 -1.259862e-05 -1.328243e-05 3.157452e-05 -8.647084e-06
#> x3~~x3 -2.269572e-05 -2.738332e-05 1.527783e-04 2.064197e-04
#> x4~~x4 6.459757e-04 6.832362e-04 -5.449319e-05 5.461796e-06
#> x5~~x5 -2.080084e-03 4.801831e-04 6.677323e-05 4.678771e-05
#> x6~~x6 5.039398e-04 -1.603122e-03 -7.335699e-06 -4.579406e-05
#> x7~~x7 1.757196e-05 -5.183366e-06 -3.368940e-03 -1.767978e-03
#> x8~~x8 1.574371e-05 -3.771666e-05 -3.429949e-03 -9.323437e-03
#> x9~~x9 -2.677522e-05 2.604058e-05 3.695614e-03 5.862929e-03
#> visual~~textual 5.976293e-04 7.336587e-04 1.891355e-04 2.281799e-04
#> visual~~speed 2.858364e-04 2.187081e-04 -1.926030e-03 -2.320677e-03
#> textual~~speed 4.661669e-04 4.047452e-04 -3.246937e-04 -8.927829e-04
#> speed=~x9 x1~~x1 x2~~x2 x3~~x3
#> visual=~x1 6.233622e-05 -0.0122250842 1.466413e-03 3.072863e-03
#> visual=~x2 1.250035e-04 0.0054101467 -2.090859e-03 -1.610649e-03
#> visual=~x3 3.071841e-04 0.0064038183 -9.100595e-04 -3.944877e-03
#> textual=~x4 7.405772e-05 -0.0001279744 2.237214e-05 3.916836e-05
#> textual=~x5 1.034695e-04 0.0000648186 -1.259862e-05 -2.269572e-05
#> textual=~x6 6.539474e-05 0.0000738346 -1.328243e-05 -2.738332e-05
#> speed=~x7 -8.867327e-04 -0.0003332406 3.157452e-05 1.527783e-04
#> speed=~x8 -1.687832e-03 -0.0003390605 -8.647084e-06 2.064197e-04
#> speed=~x9 5.894651e-03 0.0004510226 -1.161187e-05 -2.491848e-04
#> x1~~x1 4.510226e-04 0.0463660406 -4.766128e-03 -9.986706e-03
#> x2~~x2 -1.161187e-05 -0.0047661278 8.511238e-03 1.417195e-03
#> x3~~x3 -2.491848e-04 -0.0099867063 1.417195e-03 1.281872e-02
#> x4~~x4 2.680573e-05 0.0006882199 -1.230916e-04 -2.246406e-04
#> x5~~x5 -7.597103e-05 -0.0003116688 5.786411e-05 9.502759e-05
#> x6~~x6 4.038167e-05 -0.0003723394 6.453136e-05 1.260108e-04
#> x7~~x7 2.439345e-03 0.0005089865 -4.915125e-05 -2.357085e-04
#> x8~~x8 7.513275e-03 0.0010008137 2.603809e-05 -6.179704e-04
#> x9~~x9 -7.620125e-03 -0.0010703061 2.712778e-05 5.860744e-04
#> visual~~textual 1.179829e-04 -0.0009458378 3.021593e-04 1.338676e-03
#> visual~~speed 3.691166e-03 0.0036899830 -1.057782e-05 -7.935360e-04
#> textual~~speed 1.371421e-03 0.0001321966 -2.703898e-06 -8.890268e-05
#> x4~~x4 x5~~x5 x6~~x6 x7~~x7
#> visual=~x1 -2.114624e-04 9.341801e-05 1.154535e-04 -1.669503e-04
#> visual=~x2 1.400470e-04 -6.713443e-05 -7.284124e-05 5.012766e-05
#> visual=~x3 1.444548e-04 -6.283285e-05 -8.025778e-05 1.437528e-04
#> textual=~x4 -1.889064e-03 5.955463e-04 6.602594e-04 -1.903188e-05
#> textual=~x5 6.459757e-04 -2.080084e-03 5.039398e-04 1.757196e-05
#> textual=~x6 6.832362e-04 4.801831e-04 -1.603122e-03 -5.183366e-06
#> speed=~x7 -5.449319e-05 6.677323e-05 -7.335699e-06 -3.368940e-03
#> speed=~x8 5.461796e-06 4.678771e-05 -4.579406e-05 -1.767978e-03
#> speed=~x9 2.680573e-05 -7.597103e-05 4.038167e-05 2.439345e-03
#> x1~~x1 6.882199e-04 -3.116688e-04 -3.723394e-04 5.089865e-04
#> x2~~x2 -1.230916e-04 5.786411e-05 6.453136e-05 -4.915125e-05
#> x3~~x3 -2.246406e-04 9.502759e-05 1.260108e-04 -2.357085e-04
#> x4~~x4 1.672689e-02 -3.182478e-03 -3.506878e-03 8.429821e-05
#> x5~~x5 -3.182478e-03 1.691445e-02 -2.479085e-03 -1.040738e-04
#> x6~~x6 -3.506878e-03 -2.479085e-03 1.491448e-02 1.148294e-05
#> x7~~x7 8.429821e-05 -1.040738e-04 1.148294e-05 1.190422e-02
#> x8~~x8 -1.761092e-05 -1.415088e-04 1.382795e-04 5.305242e-03
#> x9~~x9 -6.349724e-05 1.774102e-04 -9.433640e-05 -5.724535e-03
#> visual~~textual -2.529357e-04 1.027251e-03 -3.238691e-04 -5.033374e-05
#> visual~~speed 7.175173e-05 -9.662949e-05 1.430018e-05 3.700656e-03
#> textual~~speed 1.292443e-04 8.197794e-05 -1.581051e-05 9.250200e-04
#> x8~~x8 x9~~x9 visual~~textual visual~~speed
#> visual=~x1 -3.329928e-04 3.507098e-04 9.461949e-04 -4.825363e-04
#> visual=~x2 -4.342221e-05 -1.901485e-05 2.082300e-05 3.751536e-04
#> visual=~x3 3.783558e-04 -3.605765e-04 -3.796066e-04 9.875436e-04
#> textual=~x4 -8.334976e-06 2.021852e-05 7.715873e-04 2.256550e-04
#> textual=~x5 1.574371e-05 -2.677522e-05 5.976293e-04 2.858364e-04
#> textual=~x6 -3.771666e-05 2.604058e-05 7.336587e-04 2.187081e-04
#> speed=~x7 -3.429949e-03 3.695614e-03 1.891355e-04 -1.926030e-03
#> speed=~x8 -9.323437e-03 5.862929e-03 2.281799e-04 -2.320677e-03
#> speed=~x9 7.513275e-03 -7.620125e-03 1.179829e-04 3.691166e-03
#> x1~~x1 1.000814e-03 -1.070306e-03 -9.458378e-04 3.689983e-03
#> x2~~x2 2.603809e-05 2.712778e-05 3.021593e-04 -1.057782e-05
#> x3~~x3 -6.179704e-04 5.860744e-04 1.338676e-03 -7.935360e-04
#> x4~~x4 -1.761092e-05 -6.349724e-05 -2.529357e-04 7.175173e-05
#> x5~~x5 -1.415088e-04 1.774102e-04 1.027251e-03 -9.662949e-05
#> x6~~x6 1.382795e-04 -9.433640e-05 -3.238691e-04 1.430018e-05
#> x7~~x7 5.305242e-03 -5.724535e-03 -5.033374e-05 3.700656e-03
#> x8~~x8 3.472513e-02 -1.762404e-02 -1.304225e-04 8.608315e-03
#> x9~~x9 -1.762404e-02 2.454052e-02 1.179607e-04 -7.497054e-03
#> visual~~textual -1.304225e-04 1.179607e-04 6.423496e-03 7.193127e-04
#> visual~~speed 8.608315e-03 -7.497054e-03 7.193127e-04 1.177453e-02
#> textual~~speed 3.652556e-03 -2.529804e-03 1.493595e-03 3.066816e-03
#> textual~~speed
#> visual=~x1 4.314192e-04
#> visual=~x2 2.654701e-04
#> visual=~x3 4.026555e-04
#> textual=~x4 4.093776e-04
#> textual=~x5 4.661669e-04
#> textual=~x6 4.047452e-04
#> speed=~x7 -3.246937e-04
#> speed=~x8 -8.927829e-04
#> speed=~x9 1.371421e-03
#> x1~~x1 1.321966e-04
#> x2~~x2 -2.703898e-06
#> x3~~x3 -8.890268e-05
#> x4~~x4 1.292443e-04
#> x5~~x5 8.197794e-05
#> x6~~x6 -1.581051e-05
#> x7~~x7 9.250200e-04
#> x8~~x8 3.652556e-03
#> x9~~x9 -2.529804e-03
#> visual~~textual 1.493595e-03
#> visual~~speed 3.066816e-03
#> textual~~speed 5.945061e-03
# }