diff --git a/help.html b/help.html index 0e4c8acbc..6f94572e1 100644 --- a/help.html +++ b/help.html @@ -405,16 +405,16 @@

Why are my changes not taking effect? It’s making my results

Here we are creating a new object from an existing one:

new_rivers <- sample(rivers, 5)
 new_rivers
-
## [1]  350 2533  246  270  360
+
## [1]  800 1885  570 2533  286

Using just this will only print the result and not actually change new_rivers:

new_rivers + 1
-
## [1]  351 2534  247  271  361
+
## [1]  801 1886  571 2534  287

If we want to modify new_rivers and save that modified version, then we need to reassign new_rivers like so:

new_rivers <- new_rivers + 1
 new_rivers
-
## [1]  351 2534  247  271  361
+
## [1]  801 1886  571 2534  287

If we forget to reassign this can cause subsequent steps to not work as expected because we will not be working with the data that has been modified.

@@ -484,7 +484,7 @@

Error: object ‘X’ not found

operator:

rivers2 <- new_rivers + 1
 rivers2
-
## [1]  352 2535  248  272  362
+
## [1]  802 1887  572 2535  288