bertopicr (version 0.3.6)

visualize_topics_over_time: Visualize Topics Over Time using BERTopic

Description

This function visualizes topics over time from a BERTopic model using Python's Plotly library. The visualization is saved as an interactive HTML file, which can be opened and viewed in a web browser.

Usage

visualize_topics_over_time(
  model,
  topics_over_time_model,
  top_n_topics = 20,
  filename = "topics_over_time"
)

Value

The function does not return a value but saves an HTML file containing the visualization and displays it in the current R environment.

Arguments

model

A BERTopic model object. The model must have the method visualize_topics_over_time.

topics_over_time_model

A topics-over-time model object created using the BERTopic model.

top_n_topics

An integer specifying the number of top topics to display in the visualization. Default is 20. Must be a positive integer.

filename

A character string specifying the name of the HTML file to save the visualization. The default value is "topics_over_time". The filename should not contain illegal characters.

Examples

# \donttest{
if (exists("topic_model") && exists("topics_over_time")) {
  visualize_topics_over_time(model = topic_model,
                             topics_over_time_model = topics_over_time,
                             top_n_topics = 5,
                             filename = "plot")
} else {
  message("No topic_model/topics_over_time found. Train a model first.")
}
# }