autoFRK (Automatic Fixed Rank Kriging) is an R package to mitigate the intensive computation for modeling regularly/irregularly located spatial data using a class of basis functions with multi-resolution features and ordered in terms of their resolutions.
To get the current development version from GitHub:
devtools::install_github("egpivo/autoFRK")autoFRL: see demo
  Tzeng S, Huang H, Wang W, Nychka D, Gillespie C (2021). _autoFRK: Automatic Fixed
  Rank Kriging_. R package version 1.4.3,
  <https://CRAN.R-project.org/package=autoFRK>.
  @Manual{,
    title = {autoFRK: Automatic Fixed Rank Kriging},
    author = {ShengLi Tzeng and Hsin-Cheng Huang and Wen-Ting Wang and Douglas Nychka and Colin Gillespie},
    year = {2021},
    note = {R package version 1.4.3},
    url = {https://CRAN.R-project.org/package=autoFRK},
  }