From f8fcc862433260b55b9fbdb31a6e12c7b780226e Mon Sep 17 00:00:00 2001
From: Tim Waterhouse <t.waterhouse@gmail.com>
Date: Wed, 20 Jun 2018 03:56:48 -0400
Subject: [PATCH] optima (plural) -> optimum (singular) (#579)

---
 model-basics.Rmd | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/model-basics.Rmd b/model-basics.Rmd
index 8e345c5..2f27798 100644
--- a/model-basics.Rmd
+++ b/model-basics.Rmd
@@ -223,7 +223,7 @@ These are exactly the same values we got with `optim()`! Behind the scenes `lm()
     to the linear model.
 
 1.  One challenge with performing numerical optimisation is that it's only
-    guaranteed to find one local optima. What's the problem with optimising
+    guaranteed to find one local optimum. What's the problem with optimising
     a three parameter model like this?
     
     ```{r}