From caca5823569adaf1c7277f4fdd53e5aa441d9f79 Mon Sep 17 00:00:00 2001
From: Doron Goldfarb <doron.goldfarb@gmail.com>
Date: Tue, 5 Oct 2021 16:20:15 +0200
Subject: [PATCH] Update glossary.yml

---
 glossary.yml | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/glossary.yml b/glossary.yml
index 188c1955..4797be36 100644
--- a/glossary.yml
+++ b/glossary.yml
@@ -2568,6 +2568,16 @@
       program can [import](#import) it. In most languages a module must export things
       explicitly in an attempt to avoid [name collision](#name_collision).
 
+- slug: factor
+  ref:
+    - base_r
+    - vector
+  en:
+    term: "factor"
+    def: >
+      An R data structure for efficiently storing vectors of categorical data, encoding 
+      categorical values as numerical indices into a lookup table with the respective 
+      category labels. 
 
 - slug: fail_test
   ref: