Fix/base-R typos and Figure 28.1 pepper caption (#1494)
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		@@ -300,7 +300,7 @@ For this reason we sometimes joke that tibbles are lazy and surly: they do less
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### Lists
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					### Lists
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`[[` and `$` are also really important for working with lists, and it's important to understand how they differ from `[`.
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					`[[` and `$` are also really important for working with lists, and it's important to understand how they differ from `[`.
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Lets illustrate the differences with a list named `l`:
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					Let's illustrate the differences with a list named `l`:
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```{r}
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					```{r}
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l <- list(
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					l <- list(
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@@ -349,8 +349,8 @@ If we suppose this pepper shaker is a list called `pepper`, then `pepper[1]` is
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#| out-width: "100%"
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					#| out-width: "100%"
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#| fig-cap: >
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					#| fig-cap: >
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#|   (Left) A pepper shaker that Hadley once found in his hotel room.
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					#|   (Left) A pepper shaker that Hadley once found in his hotel room.
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#|   (Middle) `pepper[1]`.
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					#|   (Middle) `pepper[[1]]`.
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#|   (Right) `pepper[[1]]`
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					#|   (Right) `pepper[[1]][[1]]`
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#| fig-alt: >
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					#| fig-alt: >
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#|   Three photos. On the left is a photo of a glass pepper shaker. Instead of 
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					#|   Three photos. On the left is a photo of a glass pepper shaker. Instead of 
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#|   the pepper shaker containing pepper, it contains a single packet of pepper.
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					#|   the pepper shaker containing pepper, it contains a single packet of pepper.
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@@ -443,7 +443,7 @@ for (element in vector) {
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}
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					}
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```
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					```
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The most straightforward use of `for` loops is to achieve the same affect as `walk()`: call some function with a side-effect on each element of a list.
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					The most straightforward use of `for` loops is to achieve the same effect as `walk()`: call some function with a side-effect on each element of a list.
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For example, in @sec-save-database instead of using walk:
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					For example, in @sec-save-database instead of using walk:
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```{r}
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					```{r}
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