filter_fia_small: Filter FIA data - small communities

In diazrenata/scadsanalysis: What the Package Does (One Line, Title Case)

Description

There are 66,321 FIA sites with between 3 and 9 species, and 26,667 with 1 or 2 species. Running so many different sites creates memory problems (drake plans become very long); the other datasets in this analysis have orders of magnitude fewer sites. We selected 10,000 small communities to analyze. We drew the 10,000 from the 66,321 with between 3 and 9 species, because SADs with only 1 or 2 species are not well-captured in this analysis. If S = 1, there is only one possible SAD. If S = 2, it is impossible to compute some summary statistics for shape, and it is unclear what we mean by shape. The random selection uses seed = 1977, because 1977 is the year the Portal Project was initiated and it is therefore RMD's favorite seed.

Usage

filter_fia_small(
  min_s0 = 3,
  max_s0 = 9,
  max_comm = 10000,
  storage_path = here::here("working-data", "abund_data"),
  save = TRUE
)

Arguments

min_s0	min s0
max_s0	max s0
max_comm	max ncommunities
storage_path	where to put it
save	save it?

Value

nothing

diazrenata/scadsanalysis documentation built on May 14, 2021, 6:59 p.m.