[function] plot_feature_importance() - P3chys/textmining GitHub Wiki
4. Visualization Functions
Function: plot_feature_importance()
Purpose
Visualizes feature importance scores in a horizontal bar chart.
Syntax
plot_feature_importance(feature_names, weights, top_n=20, title="Top Important Features")
Parameters
| Parameter | Type | Default | Description |
|---|---|---|---|
feature_names |
array | Required | List of feature names |
weights |
array | Required | Feature weights/coefficients |
top_n |
int | 20 | Number of top features to display |
title |
str | "Top Important Features" | Plot title |
Output
- Saves plot as 'feature_importance.png'