Variable attributes are number 0:(n-1). Global attributes are indexed by -1 or the label "NC_GLOBAL".
nc_att(x, variable, attribute, ...)
# S3 method for class 'NetCDF'
nc_att(x, variable, attribute, ...)
# S3 method for class 'character'
nc_att(x, variable, attribute, ...)
data frame of attribute with numeric id, character attribute name, character or numeric variable id or name depending on input, and attribute value.
nc_inq
includes the number of global attributes
nc_vars
includes the number of variable attributes
f <- system.file("extdata", "S2008001.L3m_DAY_CHL_chlor_a_9km.nc", package = "ncmeta")
nc_att(f, 0, 0)
#> # A tibble: 1 × 4
#> id name variable value
#> <int> <chr> <dbl> <named list>
#> 1 0 long_name 0 <chr [1]>