run_LDA: Run LDA

In JiachengHe/TextAnalysis:

Description

Run LDA

Usage

run_LDA(df, topic_num, seed_num = 731, topic_term_n = NULL, q = NULL)

Arguments

df	The document-term data_frame output from create_DTM
topic_num	An integer specifying the number of topics
seed_num	An integer specifying the random seed in the algorithm
topic_term_n	An integer sepcifying how many most frequent words within each topic to display. If default to NULL, then don't plot
q	A numeric specifying the quantile of tf-idf to remove words. If default to NULL, then don't remove

Value

A list of the beat matrix, the gamma matrix, and the topic-term histogram

Author(s)

Jiacheng He

Examples

run_LDA(text, 6)

lda_output <- run_LDA(text, 6, seed_num = 731, topic_term_n = 20)
print(lda_output$topic_term_plot)

JiachengHe/TextAnalysis documentation built on May 28, 2019, 7:51 a.m.