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Merge relevés from data frames into vegtable objects

Source: R/add_releves.R
add_releves.Rd

Addition of plot observations into existing data sets may implicate merging data frames with vegtable objects.

Since this function will only update slots samples and header, consistency with slots layers, relations and species have to be checked and accordingly updated in advance.

Usage

add_releves(vegtable, releves, ...)

# S4 method for class 'vegtable,data.frame'
add_releves(
  vegtable,
  releves,
  header,
  abundance,
  split_string,
  usage_ids = FALSE,
  layers = FALSE,
  layers_var,
  format = "crosstable",
  preserve_ids = FALSE,
  ...
)

add_releves(vegtable, ...) <- value

# S4 method for class 'vegtable,data.frame'
add_releves(vegtable, ...) <- value

Arguments

vegtable

An object of class vegtable.

releves

A data frame including plot observations to be added into vegtable.

...

Further arguments passed to function cross2db() (i.e. na_strings).

header

A data frame (optional) including header information for plots.

abundance

A character value (or vector of length 2) indicating the names of abundance variable in vegtable.

split_string

Character value used to split mixed abundance codes.

usage_ids

Logical value indicating whether species are as taxon usage ids (integers) or names in releves.

layers

Logical value indicating whether layers are included in releves or not.

layers_var

Name of the layer variable in vegtable.

format

Character value indicating input format of releves (either "crosstable" or "databaselist").

preserve_ids

A logical value, whether IDs in input data set should used as ReleveID or not. Those IDs have to be integers and if one of those already exists in vegtable, an error will be retrieved.

value

A data frame containing new plot observations. I is passed to parameter 'releves' by the replace method.

See also

cross2db()

Author

Miguel Alvarez kamapu78@gmail.com