Functions to help the process of learning structural equation modelling


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Documentation for package ‘stremo’ version 0.2

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stremo-package Learning structural equation modeling.
albert Erodium paularense data and model.
albert.litho.cov Erodium paularense data and model.
albert.model Erodium paularense data and model.
albert.rock.cov Erodium paularense data and model.
BETA Build the 4 basic matrices of the LISREL "all-y" representation given a set of starting values.
boot.lavaan Nonparametrical bootstrapping of a SEM model fit by 'lavaan'.
bumpus Bumpus house sparrow data and model.
bumpus.log Bumpus house sparrow data and model.
cor2cov Covariance matrix from a correlation matrix.
endogenous Display the endogenous variables of a lavaanified model
exogenous Display the exogenous variables of a lavaanified model
factanal.prcomp Factor analysis.
fgls Generalised least squares.
fit.nlminb Fit a structural equation model using 'nlminb'.
fml Maximum-likelihood fitting function.
grace Data and tentative model syntax for the paper by Grace et al. 2010.
grace.cov Data and tentative model syntax for the paper by Grace et al. 2010.
grace.model Data and tentative model syntax for the paper by Grace et al. 2010.
harnik Effects of biological factors on extinction risk in fossil bivalves.
harnik.model.A Effects of biological factors on extinction risk in fossil bivalves.
harnik.model.B Effects of biological factors on extinction risk in fossil bivalves.
harnik.model.C Effects of biological factors on extinction risk in fossil bivalves.
II Identity matrix
is.hermitian Check if a matrix is Hermitian.
is.pd Do some basic checking to see if a matrix is positive-definite.
is.within.bounds Check if all covariances in a covariance matrix are within bounds.
iterator Minimization of a fitting function.
jumpstart Get the starting values of the free parameters of a model.
lamb Effects of plant species richness and evenness on soil microbial community diversity and function.
lamb.archaeal.cov Effects of plant species richness and evenness on soil microbial community diversity and function.
lamb.archaeal.model Effects of plant species richness and evenness on soil microbial community diversity and function.
lamb.bacterial.cov Effects of plant species richness and evenness on soil microbial community diversity and function.
lamb.bacterial.model Effects of plant species richness and evenness on soil microbial community diversity and function.
lamb2 Yield components in oat.
lamb2.model.fig1 Yield components in oat.
lamb2.model.fig2 Yield components in oat.
lamb2.model.fig3 Yield components in oat.
LAMBDA.Y Build the 4 basic matrices of the LISREL "all-y" representation given a set of starting values.
latents Display the latent variables of a lavaanified model
latta Path analysis of natural selection via survival and fecundity across contrasting environments in _Avena barbata_.
latta.field.model Path analysis of natural selection via survival and fecundity across contrasting environments in _Avena barbata_.
latta.greenhouse.cov Path analysis of natural selection via survival and fecundity across contrasting environments in _Avena barbata_.
latta.greenhouse.model Path analysis of natural selection via survival and fecundity across contrasting environments in _Avena barbata_.
latta.hopland.cov Path analysis of natural selection via survival and fecundity across contrasting environments in _Avena barbata_.
latta.sierra.cov Path analysis of natural selection via survival and fecundity across contrasting environments in _Avena barbata_.
laughlin Determinants of nitrification potential in a pine forest ecosystem.
laughlin.model Determinants of nitrification potential in a pine forest ecosystem.
LISREL Build the 4 basic matrices of the LISREL "all-y" representation given a set of starting values.
lvnfy Set the ground to start analysing a structural equation model.
manifests Display the indicator (manifest) variables of a lavaanified model
matrix.representation Builds the LISREL "all-y" matrix representation of a model.
mirror.tri Place the values below or above the diagonal of a square matrix in the opposite triangle.
model.df Number of degrees of freedom.
model.type Displays the type of a structural equations model.
observed Display the observed variables of a lavaanified model
PSI Build the 4 basic matrices of the LISREL "all-y" representation given a set of starting values.
pugesek Bumpus house sparrow data and model.
pugesek.onefactor.model Bumpus house sparrow data and model.
pugesek.threefactors.model Bumpus house sparrow data and model.
pval Returns the p-value given a z-score.
residuals.sem Residuals of a fitted path or structural equations model.
rmnorm Random multivariate normal distribution.
RMSEA RMSEA
se.sem Standard errors of free parameters.
sem.matrices Structural and covariance matrices describing a path or latent variables model.
sigma.hat Calculates the sigma hat given a LISREL "all-y" matrix representation object.
stiles Fragmentation effects on remnant plant species richness.
stiles.model Fragmentation effects on remnant plant species richness.
stremo Learning structural equation modeling.
THETA.EPSILON Build the 4 basic matrices of the LISREL "all-y" representation given a set of starting values.