remember c() with "combine" how-r-thinks-about-data.Rmd

remember or pronounce

episodes/how-r-thinks-about-data.Rmd

@@ -131,7 +131,7 @@ There are 4 main types of vectors (also known as *atomic vectors*):
 
 Vectors can only be of a **single type**. Since each column in a data.frame is a vector, this means an accidental character following a number, like `29,` can change the type of the whole vector. Mixing up vector types is one of the most common mistakes in R, and it can be tricky to figure out. It's often very useful to check the types of vectors.
 
-To create a vector from scratch, we can use the `c()` function, putting values inside, separated by commas.
+To create a vector from scratch, we can use the `c()` function, putting values inside, separated by commas. Some say c is short for combine, which might help remembering or pronouncing.
 
 ```{r c-vector}
 c(1, 2, 5, 12, 4)