1. fastcox::FHT
    FHT data introduced in Simon et al. (2011).
  2. gcdnet::FHT
    FHT data introduced in Friedman et al. (2010).
  3. gglasso::bardet
    Simplified gene expression data from Scheetz et al. (2006)
  4. gglasso::colon
    Simplified gene expression data from Alon et al. (1999)