readLdac: Read in a .ldac Formatted File

In stm: Estimation of the Structural Topic Model

Read in a .ldac Formatted File

Description

Read in a term document matrix in the .ldac sparse matrix format popularized by David Blei's C code implementation of lda.

Usage

readLdac(filename)

Arguments

filename

An input file or filepath to be processed

Details

ldac expects a file name or path that contains a file in Blei's LDA-C format. From his ReadMe: "The data is a file where each line is of the form:

[M] [term_1]:[count] [term_2]:[count] ... [term_N]:[count]

where [M] is the number of unique terms in the document, and the [count] associated with each term is how many times that term appeared in the document. Note that [term_1] is an integer which indexes the term; it is not a string."

Because R indexes from one, the values of the term indices are incremented by one on import.

Value

documents

A documents object in our format

See Also

textProcessor, prepDocuments readCorpus

stm documentation built on June 24, 2024, 5:18 p.m.