sumTreeDBHDist: sumTreeDBHDist: calculates DBH distribution of trees

View source: R/sumTreeDBHDist.R

sumTreeDBHDistR Documentation

sumTreeDBHDist: calculates DBH distribution of trees


This function calculates DBH distribution by 10cm size classes. Must run importData first.


  park = "all",
  from = 2006,
  to = as.numeric(format(Sys.Date(), "%Y")),
  locType = c("VS", "all"),
  panels = 1:4,
  status = c("all", "active", "live", "dead"),
  speciesType = c("all", "native", "exotic", "invasive"),
  canopyPosition = c("all", "canopy"),
  dist_m = NA,
  eventType = c("complete", "all"),
  units = c("density", "BA", "both")



Combine data from all parks or one or more parks at a time. Valid inputs:


Includes all parks in the network


Acadia NP only


Marsh-Billings-Rockefeller NHP only


Minute Man NHP only


Morristown NHP only


Roosevelt-Vanderbilt NHS only


Saint-Gaudens NHS only


Saratoga NHP only


Weir Farm NHS only


Year to start analysis, ranging from 2006 to current year


Year to stop analysis, ranging from 2006 to current year


Allows you to remove or include QAQC events.


Default. Only returns visits that are not QAQC visits


Returns all visits, including QAQC visits


Allows you to only include plots that are part of the GRTS sample design or include all plots, such as deer exclosures


Only include plots that are part of the Vital Signs GRTS sample design


Include all plots, such as plots in deer exclosures or test plots.


Allows you to select individual panels from 1 to 4. Default is all 4 panels (1:4). If more than one panel is selected, specify by c(1, 3), for example.


Filter by live, dead, or all. Acceptable options are:


Default. Includes all trees with any status, including excluded or missing.


Includes all trees with an active monitoring status, including "DF".


live trees only


dead trees only


Allows you to filter on native, exotic or include all species.


Default. Returns all species.


Returns native species only


Returns exotic species only


Returns species on the Indicator Invasive List


Allows you to filter on tree crown class


Returns all canopy positions


Returns only dominant, codominant, and intermediate crown classes. Since only live trees are assigned crown classes, this also only returns live trees.


Filter trees by a distance that is less than or equal to the specified distance in meters of the tree to the center of the plot. If no distance is specified, then all trees will be selected. For example, to select an area of trees that is 100 square meters in area, use a distance of 5.64m.


Allows you to include only complete sampling events or all sampling events


Default. Only include sampling events for a plot that are complete.


Include all plot events with a record in tblCOMN.Event, including plots missing most of the data associated with that event (eg ACAD-029.2010). This feature is currently hard-coded in the function.


Allows you to choose which metric to calculate: basal area or stem density


Default. Returns stems/ha


Returns basal area in sq.m/ha


Returns noth stem density and BA/ha.


returns a dataframe with one row for each plot and either density or BA


## Not run: 
tree_diam_dist <-sumTreeDBHDist(park = 'MORR', speciesType = 'native', from = 2016, to = 2019, units = 'ba')

## End(Not run)

KateMMiller/forestNETN documentation built on April 28, 2024, 8:48 a.m.