node-red-nodes/analysis/sentiment/README.md

node-red-node-sentiment

A Node-RED node that scores incoming words using the AFINN-165 wordlist and attaches a sentiment.score property to the msg.

NOTE: There is also a multi-language version available - node-red-node-multilang-sentiment.

Install

This is a node that should be installed by default by Node-RED so you should not have to install it manually. If you do then run the following command in your Node-RED user directory - typically ~/.node-red

npm install node-red-node-sentiment

Usage

Uses the AFINN-165 wordlist to attempt to assign scores to words in text.

Attaches msg.sentiment to the msg and within that msg.sentiment.score holds the score.

A score greater than zero is positive and less than zero is negative. The score typically ranges from -5 to +5, but can go higher and lower.

See the Sentiment docs here.