Update iteration.Rmd

Correcting typo in exercise code
2016-03-26 10:07:13 +00:00 · 2016-03-26 10:07:13 +00:00 · d8f3bbddb4
parent 5c7cf27b2a
commit d8f3bbddb4
1 changed files with 1 additions and 1 deletions
--- a/iteration.Rmd
+++ b/iteration.Rmd
@ -130,7 +130,7 @@ That's all there is to the for loop! Now is a good time to practice creating som
    
    x <- sample(100)
    sd <- 0
-    for (i in seq_along(out)) {
+    for (i in seq_along(x)) {
      sd <- sd + (x[i] - mean(x)) ^ 2
    }
    sd <- sqrt(sd) / (length(x) - 1)