gnu, doc: Use HTTPS for cran.r-project.org home pages.

* gnu/packages/bioinformatics.scm (r-sparql, r-acsnminer, r-gkmsvm)
(r-maldiquant, r-gprofiler)[home-page]: Use HTTPS.
* gnu/packages/cran.scm (r-colorspace, r-auc, r-calibrate, r-shape)
(r-compare, r-proxy, r-sp, r-rmtstat, r-lmtest, r-inline, r-bbmle)
(r-lpsolve, r-energy, r-suppdists, r-ksamples, r-cvst, r-drr, r-prodlim)
(r-ddalpha, r-rcpproll, r-ipred, r-psych, r-truncnorm, r-rsolnp, r-laeken)
(r-vcd, r-ica, r-scatterplot3d)[home-page]: Likewise.
* gnu/packages/machine-learning.scm (r-adaptivesparsity, r-kernlab)
[home-page]: Likewise.
* gnu/packages/maths.scm (r-quadprog, r-pracma)[home-page]: Likewise.
* gnu/packages/statistics.scm (r-boot, r-cluster, r-codetools, r-foreign)
(r-kernsmooth, r-nlme, r-mgcv, r-rpart, r-dichromat, r-estimability)
(r-pheatmap, r-labeling, r-magrittr, r-munsell, r-rcolorbrewer, r-sendmailr)
(r-gdtools, r-acepack, r-formula, r-locfit, r-chron, r-coda, r-backports)
(r-brew, r-commonmark, r-rstudioapi, r-plotrix, r-gridbase, r-bitops)
(r-catools, r-xnomial, r-lambda-r, r-whoreadsthis, r-futile-options)
(r-futile-logger, r-segmented, r-snow, r-iterators, r-foreach, r-doparallel)
(r-domc, r-irlba, r-registry, r-e1071, r-bigmemory-sri, r-r-methodss3)
(r-tidyselect, r-base64, r-runit, r-sfsmisc, r-gtools, r-gdata, r-gplots)
(r-ztable, r-vipor, r-sourcetools, r-statmod, r-compquadform, r-mixtools)
(r-fastica, r-diptest, r-modeltools, r-flexmix, r-deoptimr, r-pcapp)
(r-rrcov, r-fit-models, r-robust, r-trimcluster, r-fpc, r-fnn)
(r-modelmetrics, r-nloptr, r-lme4, r-tclust, r-lubridate)[home-page]:
Likewise.
* gnu/packages/web.scm (r-htmltools, r-hwriter, r-rjson, r-rook)[home-page]:
Likewise.
* doc/guix.texi (Invoking guix import, Invoking guix refresh): Likewise.

1 files changed, 4 insertions, 4 deletions

diff --git a/gnu/packages/web.scm b/gnu/packages/web.scm
index 54f210873e..a31801f7b4 100644
--- a/gnu/packages/web.scm
+++ b/gnu/packages/web.scm
@@ -3844,7 +3844,7 @@ directory.")
     (propagated-inputs
      `(("r-digest" ,r-digest)
        ("r-rcpp" ,r-rcpp)))
-    (home-page "http://cran.r-project.org/web/packages/htmltools")
+    (home-page "https://cran.r-project.org/web/packages/htmltools")
     (synopsis "R tools for HTML")
     (description
      "This package provides tools for HTML generation and output in R.")
@@ -3959,7 +3959,7 @@ callback or connection interfaces.")
         (base32
          "0arjsz854rfkfqhgvpqbm9lfni97dcjs66isdsfvwfd2wz932dbb"))))
     (build-system r-build-system)
-    (home-page "http://cran.r-project.org/web/packages/hwriter")
+    (home-page "https://cran.r-project.org/web/packages/hwriter")
     (synopsis "Output R objects in HTML format")
     (description
      "This package provides easy-to-use and versatile functions to output R
@@ -3978,7 +3978,7 @@ objects in HTML format.")
         (base32
          "1vzjyvf57k1fjizlk28rby65y5lsww5qnfvgnhln74qwda7hvl3p"))))
     (build-system r-build-system)
-    (home-page "http://cran.r-project.org/web/packages/rjson")
+    (home-page "https://cran.r-project.org/web/packages/rjson")
     (synopsis "JSON library for R")
     (description
      "This package provides functions to convert R objects into JSON objects
@@ -5424,7 +5424,7 @@ files).  It currently supports linked brushing and filtering.")
     (properties `((upstream-name . "Rook")))
     (build-system r-build-system)
     (propagated-inputs `(("r-brew" ,r-brew)))
-    (home-page "http://cran.r-project.org/web/packages/Rook")
+    (home-page "https://cran.r-project.org/web/packages/Rook")
     (synopsis "Web server interface for R")
     (description
      "This package contains the Rook specification and convenience software