Merge pull request #80 from COMPASS-DOE/cran-checks

Fix DOI documentation

R/models.R

@@ -31,11 +31,11 @@
 #' Nakano, T., Sawamoto, T., Morishita, T., Inoue, G., and Hatano, R.:
 #' A comparison of regression methods for estimating soil–atmosphere diffusion
 #' gas fluxes by a closed-chamber technique, Soil Biol. Biochem.,
-#' 36, 107–113, 2004. \url{http://dx.doi.org/10.1016/j.soilbio.2003.07.005}
+#' 36, 107–113, 2004. \doi{10.1016/j.soilbio.2003.07.005}
 #'
 #' Hutchinson, G. L. and Mosier, A. R.: Improved soil cover method for field
 #' measurement of nitrous oxide fluxes, Soil Sci. Soc. Am. J., 45, 311-316,
-#' 1981. \url{http://dx.doi.org/10.2136/sssaj1981.03615995004500020017x}
+#' 1981. \doi{10.2136/sssaj1981.03615995004500020017x}
 #' @importFrom broom glance tidy
 #' @importFrom MASS rlm
 #' @importFrom stats lm predict
@@ -154,7 +154,7 @@ ffi_fit_models <- function(time, conc, area, volume) {
 #' @references
 #' Hutchinson, G. L. and Mosier, A. R.: Improved soil cover method for field
 #' measurement of nitrous oxide fluxes, Soil Sci. Soc. Am. J., 45, 311-316,
-#' 1981. \url{http://dx.doi.org/10.2136/sssaj1981.03615995004500020017x}
+#' 1981. \doi{10.2136/sssaj1981.03615995004500020017x}
 #' @examples
 #' # If data are approximately linear, then NA is returned
 #' ffi_hm1981(cars$speed, cars$dist)

R/utils.R

@@ -11,7 +11,7 @@
 #' @references Steduto et al.:
 #' Automated closed-system canopy-chamber for continuous field-crop monitoring
 #' of CO2 and H2O fluxes, Agric. For. Meteorol., 111:171-186, 2002.
-#' \url{http://dx.doi.org/10.1016/S0168-1923(02)00023-0}
+#' \doi{10.1016/S0168-1923(02)00023-0}
 #' @note If \code{temp} and/or \code{atm} are not provided, the defaults
 #' are NIST normal temperature and pressure.
 #' @name ideal-gas-law