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NEWS.md

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version 2.0.1


new features

  • ref_level can be specified in get_mob_stats, plot_rarefaction and plot_sad which allows for the reference (i.e., control) group to be specified which all others are compared to. This is similar to the implementation in the function get_delta_stats

minor bug fixes

  • typo in test_rarefaction.R
  • typo in get_mob_stats documentation

version 2.0.0


new features

  • Gradient multi-scale mob method added to the function get_delta_stats as described in McGlinn et al. (2020
  • Added a new k-nearest neighbor algorithm for the spatial sample based rarefaction curve (sSBR)
  • ggplot integrated into plotting method for get_delta_stats -> plot.mob_out
  • Added automated tests
  • Improved documentation throughout the package

bug fixes

  • Function sphere_dist did not appear to be calculating great circle distances from latitude and longitude coordinates correctly using the Haversine formula. This was corrected with a new function this is correct according to comparisons with fields::rdist.earth and geosphere::distHaversine.

omitted feature

  • Removed the function overlap_effects which provided an overlapped image of the three components SAD, N, and agg across scale. This may be added back in the future

code refactoring

  • Refactored code surrounding the get_delta_stats function which computes the differences in richness across all possible scales.
  • Refactoring was primarily accomplished by integrating in the tidyverse tools which should make the code easier to understand and follow
  • Computational time has increased as the tidyverse tools are not necessarily the most computationally efficient solutions

version 1.0.0


  • provided core functionality of mob tools described in McGlinn et al. (2019) and Chase et al. (2018)