Search Results:

Showing results 1 to 10 of 389.


Function is.fullrank [limma v3.28.14]
keywords
algebra
title
Check for Full Column Rank
description
Test whether a numeric matrix has full column rank.
Function projections [lspls v0.2-2]
keywords
algebra
title
Projection and Orthogonalisation
description
Functions to project one matrix onto another, or to ortghogonalise it against the other.
Function make.del [mvnmle v0.1-11.1]
keywords
algebra
title
Make the upper triangular matrix del from a parameter vector
description
make.del takes a parameter vector of length \(k*(k+1)/2\) and returns the upper triangular \(k \times k\) matrix \(\Delta\). make.del is a private function intended for use inside mlest.
Function tr [lmreg v1.2]
keywords
algebra
title
Trace of matrix
description
Computes the trace of a given matrix.
Function my.positive.definite.solve [pendensity v0.2.13]
keywords
algebra
title
my.positive.definite.solve
description
Reverses a quadratic positive definite matrix.
Function dimcalc [lsa v0.73.2]
keywords
algebra
title
Dimensionality Calculation Routines (LSA)
description
Methods for choosing a `good' number of singular values for the dimensionality reduction in LSA.
Function lsa [lsa v0.73.2]
keywords
algebra
title
Create a vector space with Latent Semantic Analysis (LSA)
description
Calculates a latent semantic space from a given document-term matrix.
Function sample.textmatrix [lsa v0.73.2]
keywords
algebra
title
Create a random sample of files
description
Creates a subset of the documents of a corpus to help reduce a corpus in size through random sampling.
Function fold_in [lsa v0.73.2]
keywords
algebra
title
Ex-post folding-in of textmatrices into an existing latent semantic space
description
Additional documents can be mapped into a pre-exisiting latent semantic space without influencing the factor distribution of the space. Applied, when additional documents must not influence the calculated existing latent semantic factor structure.
Function associate [lsa v0.73.2]
keywords
algebra
title
Find close terms in a textmatrix
description
Returns those terms above a threshold close to the input term, sorted in descending order of their closeness. Alternatively, all terms and their closeness value can be returned sorted descending.