Add missing alt text

functions.qmd

@@ -723,6 +723,11 @@ For example, if you might want to do a vertical bar chart where you automaticall
 Since the bar chart is vertical, we also need to reverse the usual order to get the highest values at the top:
 
 ```{r}
+#| fig-alt: |
+#|   Bar plot of clarify of diamonds, where clarity is on the y-axis and counts 
+#|   are on the x-axis, and the bars are ordered in order of frequency: SI1, 
+#|   VS2, SI2, VS1, VVS2, VVS1, IF, I1.
+
 sorted_bars <- function(df, var) {
   df |> 
     mutate({{ var }} := fct_rev(fct_infreq({{ var }})))  |>
@@ -740,6 +745,10 @@ To work around this problem, we use the special operator `:=` which tidy evaluat
 Or maybe you want to make it easy to draw a bar plot just for a subset of the data:
 
 ```{r}
+#| fig-alt: |
+#|   Bar plot of clarity of diamonds. The most common is SI1, then SI2, then 
+#|   VS2, then VS1, then VVS2, then VVS1, then I1, then lastly IF.
+
 conditional_bars <- function(df, condition, var) {
   df |> 
     filter({{ condition }}) |>