make_model: Create a Mallet object; from here we can gather word...

In mlinegar/litMagModelling: Easily Topic Analysis of the Modernist Journals Project with LDA

Description

Create a Mallet object; from here we can gather word frequency statistics, and feed into createLDAvis

Usage

make_model(dataframe, n.topics, idcolname = "id", textcolname = "text",
  datecolname = "date",
  stopListFile = "~/Dropbox/The Egoist PDFs/R/blankstopwords.txt",
  optFreq = 20, burnIn = 50, numRuns = 200)

Arguments

dataframe	data.frame usually taken from prep_corpus, a data.frame with fields for text, journal, date
n.topics	numeric number of topics that we want from LDA
idcolname	string the name of the id column from dataframe
textcolname	string the name of the text column from dataframe
datecolname	string the name of the date column from dataframe
stopListFile	string location of the stop list file to be run with Mallet. Defaults to the blank file provided by this package. Note that this file must have a single word per line, and no special characters, and MUST be a .txt file
optFreq	numeric how often should mallet optimize parameters?
burnIn	numeric number of burn in iterations for LDA
numRuns	numeric total number of runs Mallet should run before finalizing a model

Value

a Mallet object that from which we can get word frequencies, and can run LDA on

See Also

prep_corpus, which creates the data.frame this function draws on

Examples

date_vec <- date_vec
dataframe <- stripped_xmlData
marsden_journals <- make_model(dataframe, 10, journalVec = c("Blast", "Egoist", "Freewoman", "NewFreewoman"))
old_poetryMagazine <- make_model(dataframe, 10, journalVec = "Poetry Magazine", yearRangeRule = "< 1919")
poetry_vocab <- old_poetryMagazine$getVocabulary()
poetry_word.freqs <- mallet.word.freqs(marsden_journals)

mlinegar/litMagModelling documentation built on May 23, 2019, 2:12 a.m.