GetTopTerms {textmineR}

Get Top Terms for each topic from a topic model

Description

Takes topics by terms matrix and returns top M terms for each topic

Usage

GetTopTerms(phi, M, return_matrix = TRUE)

Arguments

phi

A matrix whose rows index topics and columns index words

M

An integer for the number of terms to return

return_matrix

Do you want a matrix or data.frame/tibble returned? Defaults to TRUE.

Value

If return_matrix = TRUE (the default) then a matrix. Otherwise, returns a data.frame or tibble whose columns correspond to a topic and whose m-th row correspond to the m-th top term from the input phi.

Examples

# Load a pre-formatted dtm and topic model
data(nih_sample_topic_model) 

top_terms <- GetTopTerms(phi = nih_sample_topic_model$phi, M = 5)

str(top_terms)