anchor.diff:      http://cran.fyxm.net/
       http://r.adu.org.za/
       http://cran.mirror.ac.za/
  +    http://ftp.cixug.es/CRAN/
       http://cran.es.r-project.org/
       http://ftp.sunet.se/pub/lang/CRAN/
       http://stat.ethz.ch/CRAN/
  -    http://cran.cs.pu.edu.tw/
  +    http://ftp.yzu.edu.tw/CRAN/
       http://cran.csie.ntu.edu.tw/
       http://mirrors.psu.ac.th/pub/cran/
       http://cran.pau.edu.tr/
       http://www.stats.bris.ac.uk/R/
  +    http://mirrors.ebi.ac.uk/CRAN/
       http://cran.ma.imperial.ac.uk/
  +    http://mirror.mdx.ac.uk/R/
       http://star-www.st-andrews.ac.uk/cran/
       http://cran.cnr.berkeley.edu/
       http://cran.stat.ucla.edu/
  
positive.code:     http://cran.cs.wwu.edu/
      http://camoruco.ing.uc.edu.ve/cran/
      http://cran.vinastat.com/
      http://lib.stat.cmu.edu/
    ];
  
    # Hackage mirrors
  
negative.code:     http://mirrors.xmu.edu.cn/CRAN/
      http://www.laqee.unal.edu.co/CRAN/
      http://www.icesi.edu.co/CRAN/
      http://mirrors.nic.cz/R/
      http://mirrors.dotsrc.org/cran/
      http://cran.espol.edu.ec/
      http://cran.salud.gob.sv/
      http://ftp.eenet.ee/pub/cran/
      http://cran.univ-lyon1.fr/
      http://mirror.ibcp.fr/pub/CRAN/
      http://ftp.igh.cnrs.fr/pub/CRAN/
      http://cran.irsn.fr/
      http://cran.univ-paris1.fr/
      http://cran.cardse.net/
      http://mirrors.softliste.de/cran/
      http://ftp5.gwdg.de/pub/misc/cran/
      http://cran.sciserv.eu/
      http://cran.uni-muenster.de/
      http://cran.cc.uoc.gr/mirrors/CRAN/
      http://cran.rapporter.net/
      http://cran.hafro.is/
      http://ftp.iitm.ac.in/cran/
      http://cran.repo.bppt.go.id/
      http://cran.unej.ac.id/
      http://cran.um.ac.ir/
      http://ftp.heanet.ie/mirrors/cran.r-project.org/
      http://cran.mirror.garr.it/mirrors/CRAN/
      http://cran.stat.unipd.it/
      http://dssm.unipa.it/CRAN/
      http://cran.ism.ac.jp/
      http://cran.md.tsukuba.ac.jp/
      http://cran.nexr.com/
      http://healthstat.snu.ac.kr/CRAN/
      http://cran.biodisk.org/
      http://rmirror.lau.edu.lb/
      http://cran.itam.mx/
      http://www.est.colpos.mx/R-mirror/
      http://cran.xl-mirror.nl/
  