amf_extract_badm: Extract BADM data of a specific BADM group
In amerifluxr: Interface to 'AmeriFlux' Data Services

Description Usage Arguments Value See Also Examples

This function extracts BADM data of a specific BADM group from the imported BADM (BIF) file. Use function amf_read_bif to import BADM (BIF) file.

1	amf_extract_badm(bif_data, select_group)

`bif_data`	A data frame consists of 5 columns: SITE_ID, GROUP_ID, VARIABLE_GROUP, VARIABLE, DATAVALUE, imported from function `amf_read_bif`.
`select_group`	A string (character), selected from VARIABLE_GROUP in the `bif_data`

A data frame of re-structured BADM data with the following columns:

GROUP_ID - A unique identifier for data belonging to the same instance of a reported variable group
SITE_ID - Six character site identifier (CC-Sss)
VALUE - Values for all available VARIABLES in the selected group
...

amf_read_bif

# read the BADM BIF file, using an example data file
bif <- amf_read_bif(file = system.file("extdata",
                                       "AMF_AA-Flx_BIF_CCBY4_20201218.xlsx",
                                        package = "amerifluxr"))

# get a list of valid VARIALBE_GROUP
unique(bif$VARIABLE_GROUP)

# extract the selected VARIALBE_GROUP
amf_extract_badm(bif_data = bif, select_group = "GRP_FLUX_MEASUREMENTS")
amf_extract_badm(bif_data = bif, select_group = "GRP_IGBP")