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 5.768236e-03 -2.180747e-04 -9.682749e-05 3.862199e-04
#> visual=~x2 -2.180747e-04 6.242256e-03 1.724179e-03 -4.592140e-05
#> visual=~x3 -9.682749e-05 1.724179e-03 6.375007e-03 -3.338855e-04
#> textual=~x4 3.862199e-04 -4.592140e-05 -3.338855e-04 3.477944e-03
#> textual=~x5 6.018279e-04 -2.176292e-04 -2.770488e-04 1.517196e-03
#> textual=~x6 7.605568e-04 -5.382841e-04 1.954332e-04 2.033928e-03
#> speed=~x7 6.128507e-04 1.701263e-03 6.126915e-04 -7.641123e-06
#> speed=~x8 -2.076148e-04 7.669074e-04 1.374674e-03 9.176464e-05
#> speed=~x9 6.767962e-04 5.338867e-05 3.851823e-04 -5.010991e-04
#> x1~~x1 -5.868375e-03 2.624702e-03 2.975937e-03 -3.578932e-04
#> x2~~x2 1.468701e-03 -3.077622e-03 -1.683170e-03 -4.363985e-04
#> x3~~x3 1.291399e-03 -1.738057e-03 -3.137793e-03 -6.303240e-05
#> x4~~x4 4.242329e-06 -1.983314e-05 5.631563e-04 -7.200984e-04
#> x5~~x5 1.757457e-05 -5.840046e-04 -2.001436e-04 2.858206e-04
#> x6~~x6 -2.013611e-06 2.471410e-04 -2.498341e-04 2.438519e-04
#> x7~~x7 -6.200972e-05 -1.199210e-03 8.821869e-05 -1.114422e-03
#> x8~~x8 3.412162e-04 -9.899260e-04 -4.981966e-04 -3.496915e-04
#> x9~~x9 -1.169325e-04 -1.756443e-04 -7.484516e-05 2.374742e-04
#> visual~~textual 5.838731e-04 2.527877e-04 -1.637993e-04 1.907565e-04
#> visual~~speed 2.175891e-04 -6.447806e-04 -1.611589e-04 -7.618614e-04
#> textual~~speed 4.140355e-04 -2.448115e-04 -8.726660e-05 6.013306e-05
#> textual=~x5 textual=~x6 speed=~x7 speed=~x8
#> visual=~x1 6.018279e-04 7.605568e-04 6.128507e-04 -2.076148e-04
#> visual=~x2 -2.176292e-04 -5.382841e-04 1.701263e-03 7.669074e-04
#> visual=~x3 -2.770488e-04 1.954332e-04 6.126915e-04 1.374674e-03
#> textual=~x4 1.517196e-03 2.033928e-03 -7.641123e-06 9.176464e-05
#> textual=~x5 4.044699e-03 2.005954e-03 2.100590e-04 -2.847953e-05
#> textual=~x6 2.005954e-03 3.430091e-03 2.490615e-04 -1.223002e-04
#> speed=~x7 2.100590e-04 2.490615e-04 5.197611e-03 7.832762e-04
#> speed=~x8 -2.847953e-05 -1.223002e-04 7.832762e-04 5.715435e-03
#> speed=~x9 5.328572e-04 -2.767663e-04 -4.331903e-04 -1.014387e-03
#> x1~~x1 -6.988515e-04 -3.617586e-04 -5.097893e-04 8.344561e-05
#> x2~~x2 2.446325e-04 2.435424e-04 -7.134969e-04 6.936151e-04
#> x3~~x3 1.776364e-04 -1.798778e-04 1.401799e-05 -1.225701e-03
#> x4~~x4 7.638350e-04 1.959890e-04 2.689462e-04 5.219829e-05
#> x5~~x5 -8.365361e-04 5.557985e-04 2.175529e-04 -2.639875e-04
#> x6~~x6 -3.388541e-04 -5.325474e-04 -3.853165e-04 -7.193402e-04
#> x7~~x7 -2.140826e-04 -3.287862e-04 -3.615443e-03 -1.847806e-03
#> x8~~x8 -6.833667e-04 -8.104702e-05 -4.649879e-04 -3.908064e-03
#> x9~~x9 -7.464858e-05 3.043284e-04 5.481364e-04 2.104002e-03
#> visual~~textual 4.136994e-04 1.876363e-04 2.160835e-04 -9.493487e-05
#> visual~~speed -3.092461e-04 -4.145462e-04 -2.691227e-04 -1.401959e-03
#> textual~~speed 7.714795e-05 -5.904730e-04 4.188721e-04 -9.036676e-06
#> speed=~x9 x1~~x1 x2~~x2 x3~~x3
#> visual=~x1 6.767962e-04 -5.868375e-03 0.0014687010 1.291399e-03
#> visual=~x2 5.338867e-05 2.624702e-03 -0.0030776221 -1.738057e-03
#> visual=~x3 3.851823e-04 2.975937e-03 -0.0016831697 -3.137793e-03
#> textual=~x4 -5.010991e-04 -3.578932e-04 -0.0004363985 -6.303240e-05
#> textual=~x5 5.328572e-04 -6.988515e-04 0.0002446325 1.776364e-04
#> textual=~x6 -2.767663e-04 -3.617586e-04 0.0002435424 -1.798778e-04
#> speed=~x7 -4.331903e-04 -5.097893e-04 -0.0007134969 1.401799e-05
#> speed=~x8 -1.014387e-03 8.344561e-05 0.0006936151 -1.225701e-03
#> speed=~x9 5.441419e-03 -1.123255e-04 -0.0006032298 -2.793881e-04
#> x1~~x1 -1.123255e-04 1.290715e-02 -0.0027019129 -4.040227e-03
#> x2~~x2 -6.032298e-04 -2.701913e-03 0.0117433876 2.013394e-03
#> x3~~x3 -2.793881e-04 -4.040227e-03 0.0020133937 9.207058e-03
#> x4~~x4 -8.031481e-06 2.112193e-04 -0.0009034051 -2.045253e-04
#> x5~~x5 -7.478416e-05 -3.029082e-04 0.0003681102 5.733665e-04
#> x6~~x6 3.560314e-04 2.321858e-04 0.0006491090 4.200302e-04
#> x7~~x7 1.523557e-03 4.493494e-04 0.0009648970 9.188894e-04
#> x8~~x8 2.862057e-03 4.071767e-04 -0.0012805886 5.484940e-04
#> x9~~x9 -4.012708e-03 -1.081404e-03 0.0010987051 6.011874e-04
#> visual~~textual 2.058843e-04 -6.676085e-05 0.0006765625 1.853486e-04
#> visual~~speed 2.536981e-03 2.590018e-04 0.0004323332 5.133066e-04
#> textual~~speed 1.588119e-03 -5.526231e-04 0.0002582848 3.344160e-04
#> x4~~x4 x5~~x5 x6~~x6 x7~~x7
#> visual=~x1 4.242329e-06 1.757457e-05 -2.013611e-06 -6.200972e-05
#> visual=~x2 -1.983314e-05 -5.840046e-04 2.471410e-04 -1.199210e-03
#> visual=~x3 5.631563e-04 -2.001436e-04 -2.498341e-04 8.821869e-05
#> textual=~x4 -7.200984e-04 2.858206e-04 2.438519e-04 -1.114422e-03
#> textual=~x5 7.638350e-04 -8.365361e-04 -3.388541e-04 -2.140826e-04
#> textual=~x6 1.959890e-04 5.557985e-04 -5.325474e-04 -3.287862e-04
#> speed=~x7 2.689462e-04 2.175529e-04 -3.853165e-04 -3.615443e-03
#> speed=~x8 5.219829e-05 -2.639875e-04 -7.193402e-04 -1.847806e-03
#> speed=~x9 -8.031481e-06 -7.478416e-05 3.560314e-04 1.523557e-03
#> x1~~x1 2.112193e-04 -3.029082e-04 2.321858e-04 4.493494e-04
#> x2~~x2 -9.034051e-04 3.681102e-04 6.491090e-04 9.648970e-04
#> x3~~x3 -2.045253e-04 5.733665e-04 4.200302e-04 9.188894e-04
#> x4~~x4 2.369284e-03 -9.343907e-04 -4.792527e-04 3.630016e-04
#> x5~~x5 -9.343907e-04 3.416810e-03 8.941463e-06 -9.070329e-05
#> x6~~x6 -4.792527e-04 8.941463e-06 2.014369e-03 1.419110e-03
#> x7~~x7 3.630016e-04 -9.070329e-05 1.419110e-03 9.489695e-03
#> x8~~x8 -2.016503e-04 3.930651e-04 7.146565e-04 1.681090e-03
#> x9~~x9 3.220988e-04 7.447255e-05 -3.950168e-04 -1.474141e-03
#> visual~~textual -5.569200e-05 3.415000e-04 -1.282415e-04 -7.142344e-04
#> visual~~speed -2.838457e-04 4.112181e-04 4.945674e-04 1.847850e-03
#> textual~~speed -5.044799e-04 -4.062312e-04 6.238473e-04 -5.473036e-04
#> x8~~x8 x9~~x9 visual~~textual visual~~speed
#> visual=~x1 3.412162e-04 -1.169325e-04 5.838731e-04 0.0002175891
#> visual=~x2 -9.899260e-04 -1.756443e-04 2.527877e-04 -0.0006447806
#> visual=~x3 -4.981966e-04 -7.484516e-05 -1.637993e-04 -0.0001611589
#> textual=~x4 -3.496915e-04 2.374742e-04 1.907565e-04 -0.0007618614
#> textual=~x5 -6.833667e-04 -7.464858e-05 4.136994e-04 -0.0003092461
#> textual=~x6 -8.104702e-05 3.043284e-04 1.876363e-04 -0.0004145462
#> speed=~x7 -4.649879e-04 5.481364e-04 2.160835e-04 -0.0002691227
#> speed=~x8 -3.908064e-03 2.104002e-03 -9.493487e-05 -0.0014019586
#> speed=~x9 2.862057e-03 -4.012708e-03 2.058843e-04 0.0025369811
#> x1~~x1 4.071767e-04 -1.081404e-03 -6.676085e-05 0.0002590018
#> x2~~x2 -1.280589e-03 1.098705e-03 6.765625e-04 0.0004323332
#> x3~~x3 5.484940e-04 6.011874e-04 1.853486e-04 0.0005133066
#> x4~~x4 -2.016503e-04 3.220988e-04 -5.569200e-05 -0.0002838457
#> x5~~x5 3.930651e-04 7.447255e-05 3.415000e-04 0.0004112181
#> x6~~x6 7.146565e-04 -3.950168e-04 -1.282415e-04 0.0004945674
#> x7~~x7 1.681090e-03 -1.474141e-03 -7.142344e-04 0.0018478500
#> x8~~x8 8.144486e-03 -4.022520e-03 2.224217e-04 0.0025829541
#> x9~~x9 -4.022520e-03 6.621775e-03 -1.112289e-04 -0.0025470436
#> visual~~textual 2.224217e-04 -1.112289e-04 3.113457e-03 -0.0001154302
#> visual~~speed 2.582954e-03 -2.547044e-03 -1.154302e-04 0.0049119015
#> textual~~speed 1.643378e-03 -1.492357e-03 9.436573e-04 0.0022381628
#> textual~~speed
#> visual=~x1 4.140355e-04
#> visual=~x2 -2.448115e-04
#> visual=~x3 -8.726660e-05
#> textual=~x4 6.013306e-05
#> textual=~x5 7.714795e-05
#> textual=~x6 -5.904730e-04
#> speed=~x7 4.188721e-04
#> speed=~x8 -9.036676e-06
#> speed=~x9 1.588119e-03
#> x1~~x1 -5.526231e-04
#> x2~~x2 2.582848e-04
#> x3~~x3 3.344160e-04
#> x4~~x4 -5.044799e-04
#> x5~~x5 -4.062312e-04
#> x6~~x6 6.238473e-04
#> x7~~x7 -5.473036e-04
#> x8~~x8 1.643378e-03
#> x9~~x9 -1.492357e-03
#> visual~~textual 9.436573e-04
#> visual~~speed 2.238163e-03
#> textual~~speed 5.452039e-03
# Internal parameterisation (Laplace approximation)
vcov(fit, type = "theta")
#> visual=~x1 visual=~x2 visual=~x3 textual=~x4
#> visual=~x1 6.898587e-03 -9.165857e-04 -9.867557e-04 3.367678e-04
#> visual=~x2 -9.165857e-04 6.525261e-03 1.566651e-03 1.401828e-04
#> visual=~x3 -9.867557e-04 1.566651e-03 6.021448e-03 1.929055e-04
#> textual=~x4 3.367678e-04 1.401828e-04 1.929055e-04 3.202281e-03
#> textual=~x5 3.121193e-04 1.987118e-04 2.574554e-04 1.677661e-03
#> textual=~x6 2.529953e-04 1.681537e-04 2.191811e-04 1.367829e-03
#> speed=~x7 3.029206e-04 7.609836e-05 4.973399e-05 8.864062e-05
#> speed=~x8 3.412604e-04 1.418067e-04 4.229667e-05 9.296407e-05
#> speed=~x9 6.195091e-05 1.241973e-04 3.052028e-04 7.359271e-05
#> x1~~x1 -1.216302e-02 5.382504e-03 6.370959e-03 -1.273305e-04
#> x2~~x2 1.458995e-03 -2.080412e-03 -9.054328e-04 2.226225e-05
#> x3~~x3 3.057214e-03 -1.602436e-03 -3.925080e-03 3.897942e-05
#> x4~~x4 -2.104044e-04 1.393482e-04 1.437300e-04 -1.879696e-03
#> x5~~x5 9.295670e-05 -6.679914e-05 -6.251812e-05 5.925565e-04
#> x6~~x6 1.148743e-04 -7.247747e-05 -7.985547e-05 6.570178e-04
#> x7~~x7 -1.661245e-04 4.988021e-05 1.430742e-04 -1.892993e-05
#> x8~~x8 -3.313343e-04 -4.319711e-05 3.765540e-04 -8.262366e-06
#> x9~~x9 3.489718e-04 -1.892216e-05 -3.588609e-04 2.009704e-05
#> visual~~textual 9.415274e-04 2.075824e-05 -3.777095e-04 7.678324e-04
#> visual~~speed -4.800760e-04 3.732852e-04 9.826828e-04 2.245913e-04
#> textual~~speed 4.293306e-04 2.641969e-04 4.007179e-04 4.074328e-04
#> textual=~x5 textual=~x6 speed=~x7 speed=~x8
#> visual=~x1 3.121193e-04 2.529953e-04 3.029206e-04 3.412604e-04
#> visual=~x2 1.987118e-04 1.681537e-04 7.609836e-05 1.418067e-04
#> visual=~x3 2.574554e-04 2.191811e-04 4.973399e-05 4.229667e-05
#> textual=~x4 1.677661e-03 1.367829e-03 8.864062e-05 9.296407e-05
#> textual=~x5 3.904073e-03 1.568076e-03 7.389059e-05 9.519861e-05
#> textual=~x6 1.568076e-03 2.879717e-03 7.409026e-05 9.590733e-05
#> speed=~x7 7.389059e-05 7.409026e-05 5.439411e-03 1.886296e-03
#> speed=~x8 9.519861e-05 9.590733e-05 1.886296e-03 5.575902e-03
#> speed=~x9 1.028171e-04 6.498526e-05 -8.811822e-04 -1.676962e-03
#> x1~~x1 6.449054e-05 7.346268e-05 -3.316229e-04 -3.374218e-04
#> x2~~x2 -1.253501e-05 -1.321498e-05 3.141020e-05 -8.613488e-06
#> x3~~x3 -2.257528e-05 -2.723894e-05 1.520326e-04 2.054104e-04
#> x4~~x4 6.427250e-04 6.798769e-04 -5.422684e-05 5.431733e-06
#> x5~~x5 -2.069644e-03 4.778096e-04 6.645149e-05 4.656548e-05
#> x6~~x6 5.014459e-04 -1.595198e-03 -7.304155e-06 -4.557413e-05
#> x7~~x7 1.749729e-05 -5.150650e-06 -3.352527e-03 -1.759687e-03
#> x8~~x8 1.570784e-05 -3.750155e-05 -3.413783e-03 -9.277591e-03
#> x9~~x9 -2.667457e-05 2.589312e-05 3.678129e-03 5.834693e-03
#> visual~~textual 5.947602e-04 7.300952e-04 1.882035e-04 2.270434e-04
#> visual~~speed 2.844870e-04 2.176762e-04 -1.916930e-03 -2.309643e-03
#> textual~~speed 4.639551e-04 4.028189e-04 -3.232058e-04 -8.884590e-04
#> speed=~x9 x1~~x1 x2~~x2 x3~~x3
#> visual=~x1 6.195091e-05 -1.216302e-02 1.458995e-03 3.057214e-03
#> visual=~x2 1.241973e-04 5.382504e-03 -2.080412e-03 -1.602436e-03
#> visual=~x3 3.052028e-04 6.370959e-03 -9.054328e-04 -3.925080e-03
#> textual=~x4 7.359271e-05 -1.273305e-04 2.226225e-05 3.897942e-05
#> textual=~x5 1.028171e-04 6.449054e-05 -1.253501e-05 -2.257528e-05
#> textual=~x6 6.498526e-05 7.346268e-05 -1.321498e-05 -2.723894e-05
#> speed=~x7 -8.811822e-04 -3.316229e-04 3.141020e-05 1.520326e-04
#> speed=~x8 -1.676962e-03 -3.374218e-04 -8.613488e-06 2.054104e-04
#> speed=~x9 5.855960e-03 4.488534e-04 -1.154329e-05 -2.479650e-04
#> x1~~x1 4.488534e-04 4.620665e-02 -4.749730e-03 -9.951987e-03
#> x2~~x2 -1.154329e-05 -4.749730e-03 8.482971e-03 1.412339e-03
#> x3~~x3 -2.479650e-04 -9.951987e-03 1.412339e-03 1.277592e-02
#> x4~~x4 2.667909e-05 6.858895e-04 -1.226832e-04 -2.238859e-04
#> x5~~x5 -7.560511e-05 -3.106132e-04 5.767489e-05 9.471622e-05
#> x6~~x6 4.018847e-05 -3.710817e-04 6.431582e-05 1.255854e-04
#> x7~~x7 2.427752e-03 5.073830e-04 -4.897727e-05 -2.349523e-04
#> x8~~x8 7.476746e-03 9.976715e-04 2.597746e-05 -6.159681e-04
#> x9~~x9 -7.583367e-03 -1.066922e-03 2.701198e-05 5.841872e-04
#> visual~~textual 1.174709e-04 -9.425100e-04 3.011801e-04 1.334329e-03
#> visual~~speed 3.673533e-03 3.677837e-03 -1.046462e-05 -7.908254e-04
#> textual~~speed 1.364862e-03 1.318368e-04 -2.688307e-06 -8.861014e-05
#> x4~~x4 x5~~x5 x6~~x6 x7~~x7
#> visual=~x1 -2.104044e-04 9.295670e-05 1.148743e-04 -1.661245e-04
#> visual=~x2 1.393482e-04 -6.679914e-05 -7.247747e-05 4.988021e-05
#> visual=~x3 1.437300e-04 -6.251812e-05 -7.985547e-05 1.430742e-04
#> textual=~x4 -1.879696e-03 5.925565e-04 6.570178e-04 -1.892993e-05
#> textual=~x5 6.427250e-04 -2.069644e-03 5.014459e-04 1.749729e-05
#> textual=~x6 6.798769e-04 4.778096e-04 -1.595198e-03 -5.150650e-06
#> speed=~x7 -5.422684e-05 6.645149e-05 -7.304155e-06 -3.352527e-03
#> speed=~x8 5.431733e-06 4.656548e-05 -4.557413e-05 -1.759687e-03
#> speed=~x9 2.667909e-05 -7.560511e-05 4.018847e-05 2.427752e-03
#> x1~~x1 6.858895e-04 -3.106132e-04 -3.710817e-04 5.073830e-04
#> x2~~x2 -1.226832e-04 5.767489e-05 6.431582e-05 -4.897727e-05
#> x3~~x3 -2.238859e-04 9.471622e-05 1.255854e-04 -2.349523e-04
#> x4~~x4 1.667134e-02 -3.171764e-03 -3.495430e-03 8.402710e-05
#> x5~~x5 -3.171764e-03 1.685817e-02 -2.470971e-03 -1.037440e-04
#> x6~~x6 -3.495430e-03 -2.470971e-03 1.486517e-02 1.145233e-05
#> x7~~x7 8.402710e-05 -1.037440e-04 1.145233e-05 1.186519e-02
#> x8~~x8 -1.753871e-05 -1.410673e-04 1.378402e-04 5.289076e-03
#> x9~~x9 -6.330128e-05 1.768555e-04 -9.404482e-05 -5.706960e-03
#> visual~~textual -2.520747e-04 1.023875e-03 -3.228116e-04 -5.013071e-05
#> visual~~speed 7.152447e-05 -9.631759e-05 1.425938e-05 3.689237e-03
#> textual~~speed 1.288246e-04 8.172103e-05 -1.575283e-05 9.222448e-04
#> x8~~x8 x9~~x9 visual~~textual visual~~speed
#> visual=~x1 -3.313343e-04 3.489718e-04 9.415274e-04 -4.800760e-04
#> visual=~x2 -4.319711e-05 -1.892216e-05 2.075824e-05 3.732852e-04
#> visual=~x3 3.765540e-04 -3.588609e-04 -3.777095e-04 9.826828e-04
#> textual=~x4 -8.262366e-06 2.009704e-05 7.678324e-04 2.245913e-04
#> textual=~x5 1.570784e-05 -2.667457e-05 5.947602e-04 2.844870e-04
#> textual=~x6 -3.750155e-05 2.589312e-05 7.300952e-04 2.176762e-04
#> speed=~x7 -3.413783e-03 3.678129e-03 1.882035e-04 -1.916930e-03
#> speed=~x8 -9.277591e-03 5.834693e-03 2.270434e-04 -2.309643e-03
#> speed=~x9 7.476746e-03 -7.583367e-03 1.174709e-04 3.673533e-03
#> x1~~x1 9.976715e-04 -1.066922e-03 -9.425100e-04 3.677837e-03
#> x2~~x2 2.597746e-05 2.701198e-05 3.011801e-04 -1.046462e-05
#> x3~~x3 -6.159681e-04 5.841872e-04 1.334329e-03 -7.908254e-04
#> x4~~x4 -1.753871e-05 -6.330128e-05 -2.520747e-04 7.152447e-05
#> x5~~x5 -1.410673e-04 1.768555e-04 1.023875e-03 -9.631759e-05
#> x6~~x6 1.378402e-04 -9.404482e-05 -3.228116e-04 1.425938e-05
#> x7~~x7 5.289076e-03 -5.706960e-03 -5.013071e-05 3.689237e-03
#> x8~~x8 3.461087e-02 -1.756801e-02 -1.298722e-04 8.581362e-03
#> x9~~x9 -1.756801e-02 2.446224e-02 1.174843e-04 -7.473895e-03
#> visual~~textual -1.298722e-04 1.174843e-04 6.402515e-03 7.171685e-04
#> visual~~speed 8.581362e-03 -7.473895e-03 7.171685e-04 1.173705e-02
#> textual~~speed 3.640917e-03 -2.521933e-03 1.488903e-03 3.057236e-03
#> textual~~speed
#> visual=~x1 4.293306e-04
#> visual=~x2 2.641969e-04
#> visual=~x3 4.007179e-04
#> textual=~x4 4.074328e-04
#> textual=~x5 4.639551e-04
#> textual=~x6 4.028189e-04
#> speed=~x7 -3.232058e-04
#> speed=~x8 -8.884590e-04
#> speed=~x9 1.364862e-03
#> x1~~x1 1.318368e-04
#> x2~~x2 -2.688307e-06
#> x3~~x3 -8.861014e-05
#> x4~~x4 1.288246e-04
#> x5~~x5 8.172103e-05
#> x6~~x6 -1.575283e-05
#> x7~~x7 9.222448e-04
#> x8~~x8 3.640917e-03
#> x9~~x9 -2.521933e-03
#> visual~~textual 1.488903e-03
#> visual~~speed 3.057236e-03
#> textual~~speed 5.925664e-03
# }