Sparse Inverse Covariance for Ecological Statistical Inference


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Documentation for package ‘SpiecEasi’ version 0.1.4

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adj2igraph Adjacency to igraph
alr Additive log-ratio functions
as.data.frame.graph s3 method for graph to other data types
as.matrix.graph s3 method for graph to other data types
band keywords internal
block keywords internal
clr Centered log-ratio functions
cluster keywords internal
cor2cov Convert a symmetric correlation matrix to a covariance matrix given the standard deviation
cov2prec Covariance matrix to its matrix inverse (Precision matrix)
erdos_renyi keywords internal
fitdistr Fit parameters of a marginal distribution to some data vector
getOptBeta get opt beta
getOptMerge get opt merge
get_comm_params Get the parameters for the OTUs (along mar) of each community
graph2prec Convert a symmetric graph (extension of R matrix class)
hub keywords internal
icov.select Model selection for picking the right 'lambda' penalty. This is identical to huge::huge.stars except that the subsampling loop is replaced with an mclapply function to add parallelization capabilities.
make_graph Procedure to generate graph topologies for Gaussian Graphical Models
neff N_effective: Compute the exponential of the shannon entropy. linearizes shannon entropy, for a better diveristy metric (effective number of species)
norm_diric importFrom VGAM rdiric
norm_pseudo add pseudocount before normalizing a vector
norm_to_total Total sum normalization of a (presumably positive) data vector
prec2cov Precision matrix (inverse covariance) to a covariance matrix
pval.sparccboot get pvals
qqdplot_comm qq-plot for theoretical vs observed communities
rmvnegbin Generate multivariate, Zero-inflated negative binomial data, with counts approximately correlated according to Sigma
rmvnorm Draw samples from multivariate, correlated normal distribution with counts correlated according to Sigma
rmvpois Generate multivariate poisson data, with counts approximately correlated according to Sigma
rmvzinegbin Generate multivariate, negative binomial data, with counts approximately correlated according to Sigma
rmvzipois Generate multivariate, Zero-inflated poisson data, with counts approximately correlated according to Sigma
rzipois Draw samples from a zero-inflated poisson distribution
scale_free keywords internal
shannon compute the shannon entropy from a vector (normalized internally)
sparcc SparCC
sparccboot SparCC bootstraps
sparseiCov Sparse/penalized estimators of covariance matrices
spiec.easi Spiec-Easi pipeline
spiec.easi.default Spiec-Easi pipeline
spiec.easi.otu_table Spiec-Easi pipeline
spiec.easi.phyloseq Spiec-Easi pipeline
stars.pr stars.roc, stars.pr
stars.roc stars.roc, stars.pr
symBeta sym beta
synth_comm_from_counts synth_comm_from_counts