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stremo (version 0.2)
Functions to help the process of learning structural equation modelling
Description
Functions to assist the process of learning structural equation modeling
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Version
Version
0.2
0.1
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Install
install.packages('stremo')
Monthly Downloads
20
Version
0.2
License
GPL
Maintainer
Gustavo Carvalho
Last Published
September 29th, 2011
Functions in stremo (0.2)
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grace
Data and tentative model syntax for the paper by Grace et al. 2010.
manifests
Display the indicator (manifest) variables of a lavaanified model
is.pd
Do some basic checking to see if a matrix is positive-definite.
II
Identity matrix
LISREL
Build the 4 basic matrices of the LISREL "all-y" representation given a set of starting values.
harnik
Effects of biological factors on extinction risk in fossil bivalves.
Standard errors
Standard errors of free parameters.
boot.lavaan
Nonparametrical bootstrapping of a SEM model fit by
lavaan
.
RMSEA
RMSEA
P-value
Returns the p-value given a z-score.
pugesek
Bumpus house sparrow data and model.
exogenous
Display the exogenous variables of a lavaanified model
albert
Erodium paularense data and model.
laughlin
Determinants of nitrification potential in a pine forest ecosystem.
endogenous
Display the endogenous variables of a lavaanified model
latents
Display the latent variables of a lavaanified model
lvnfy
Set the ground to start analysing a structural equation model.
degrees of freedom
Number of degrees of freedom.
Residuals
Residuals of a fitted path or structural equations model.
latta
Path analysis of natural selection via survival and fecundity across contrasting environments in
Avena barbata
.
iterator
Minimization of a fitting function.
ML
Maximum-likelihood fitting function.
is.hermitian
Check if a matrix is Hermitian.
lamb
Effects of plant species richness and evenness on soil microbial community diversity and function.
fit.nlminb
Fit a structural equation model using
nlminb
.
GLS
Generalised least squares.
model.type
Displays the type of a structural equations model.
lamb2
Yield components in oat.
cor2cov
Covariance matrix from a correlation matrix.
is.within.bounds
Check if all covariances in a covariance matrix are within bounds.
mirror.tri
Place the values below or above the diagonal of a square matrix in the opposite triangle.
observed
Display the observed variables of a lavaanified model
matrix.representation
Builds the LISREL "all-y" matrix representation of a model.
Structural Matrices and Sigma
Structural and covariance matrices describing a path or latent variables model.
stiles
Fragmentation effects on remnant plant species richness.
Multivariate Normal
Random multivariate normal distribution.
Factor analysis
Factor analysis.
jumpstart
Get the starting values of the free parameters of a model.
stremo-package
Learning structural equation modeling.
sigma.hat
Calculates the sigma hat given a LISREL "all-y" matrix representation object.