Update R/slide.R

Co-authored-by: brookslogan <[email protected]>

R/slide.R

@@ -12,13 +12,13 @@
 #'   section for more. If a function, `.f` must have the form `function(x, g, t,
 #'   ...)`, where
 #'
-#'   - "x" is a data frame with the same column names as the original object,
+#'   - `x` is a data frame with the same column names as the original object,
 #'   minus any grouping variables, with only the windowed data for one
 #'   group-`.ref_time_value` combination
-#'   - "g" is a one-row tibble containing the values of the grouping variables
+#'   - `g` is a one-row tibble containing the values of the grouping variables
 #'   for the associated group
-#'   - "t" is the ref_time_value for the current window
-#'   - "..." are additional arguments
+#'   - `t` is the `.ref_time_value` for the current window
+#'   - `...` are additional arguments
 #'
 #'   If a formula, `.f` can operate directly on columns accessed via `.x$var` or
 #'   `.$var`, as in `~mean(.x$var)` to compute a mean of a column `var` for each