read_ebd | R Documentation |
Read an eBird Basic Dataset file using readr::read_delim()
. read_ebd()
reads the EBD itself, while read_sampling()' reads a sampling event data
file.
read_ebd(x, sep = "\t", unique = TRUE, rollup = TRUE)
## S3 method for class 'character'
read_ebd(x, sep = "\t", unique = TRUE, rollup = TRUE)
## S3 method for class 'auk_ebd'
read_ebd(x, sep = "\t", unique = TRUE, rollup = TRUE)
read_sampling(x, sep = "\t", unique = TRUE)
## S3 method for class 'character'
read_sampling(x, sep = "\t", unique = TRUE)
## S3 method for class 'auk_ebd'
read_sampling(x, sep = "\t", unique = TRUE)
## S3 method for class 'auk_sampling'
read_sampling(x, sep = "\t", unique = TRUE)
x |
filename or |
sep |
character; single character used to separate fields within a row. |
unique |
logical; should duplicate grouped checklists be removed. If
|
rollup |
logical; should taxonomic rollup to species level be applied.
If |
This functions performs the following processing steps:
Data types for columns are manually set based on column names used in the February 2017 EBD. If variables are added or names are changed in later releases, any new variables will have data types inferred by the import function used.
Variables names are converted to snake_case
.
Duplicate observations resulting from group checklists are removed using
auk_unique()
, unless unique = FALSE
.
A data frame of EBD observations. An additional column,
checklist_id
, is added to output files if unique = TRUE
, that uniquely
identifies the checklist from which the observation came. This field is
equal to sampling_event_identifier
for non-group checklists, and
group_identifier
for group checklists.
read_ebd(character)
: Filename of EBD.
read_ebd(auk_ebd)
: auk_ebd
object output from auk_filter()
read_sampling(character)
: Filename of sampling event data file
read_sampling(auk_ebd)
: auk_ebd
object output from auk_filter()
. Must have
had a sampling event data file set in the original call to auk_ebd()
.
read_sampling(auk_sampling)
: auk_sampling
object output from auk_filter()
.
Other import:
auk_zerofill()
f <- system.file("extdata/ebd-sample.txt", package = "auk")
read_ebd(f)
# read a sampling event data file
x <- system.file("extdata/zerofill-ex_sampling.txt", package = "auk") %>%
read_sampling()
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