fix urls

Author: thomasp85

R/guide-colorbar.R

@@ -6,7 +6,7 @@ NULL
 #' Colour bar guide shows continuous colour scales mapped onto values.
 #' Colour bar is available with `scale_fill` and `scale_colour`.
 #' For more information, see the inspiration for this function:
-#' \href{http://www.mathworks.com/help/techdoc/ref/colorbar.html}{Matlab's colorbar function}.
+#' \href{https://www.mathworks.com/help/techdoc/ref/colorbar.html}{Matlab's colorbar function}.
 #'
 #' Guides can be specified in each `scale_*` or in [guides()].
 #' `guide="legend"` in `scale_*` is syntactic sugar for

R/stat-ellipse.R

@@ -5,7 +5,7 @@
 #'
 #' @references John Fox and Sanford Weisberg (2011). An \R Companion to
 #'   Applied Regression, Second Edition. Thousand Oaks CA: Sage. URL:
-#'   \url{https://socialsciences.mcmaster.ca/jfox/Books/Companion/}
+#'   \url{https://uk.sagepub.com/en-gb/eur/an-r-companion-to-applied-regression/book246125}
 #' @references Michael Friendly. Georges Monette. John Fox. "Elliptical Insights: Understanding Statistical Methods through Elliptical Geometry."
 #' Statist. Sci. 28 (1) 1 - 39, February 2013. URL: \url{https://projecteuclid.org/journals/statistical-science/volume-28/issue-1/Elliptical-Insights-Understanding-Statistical-Methods-through-Elliptical-Geometry/10.1214/12-STS402.full}
 #'