Get information about a NetCDF data source, may be a file path, or a RNetCDF
file handle, or an OpenDAP/Thredds server address.
nc_inq(x, ...)
# S3 method for NetCDF
nc_inq(x, ...)
# S3 method for character
nc_inq(x, ...)filename or handle
ignored
# \donttest{
if (FALSE) {
f <- raadfiles:::cmip5_files()$fullname[1]
nc_inq(f)
nc_var(f, 0)
nc_dim(f, 0)
}
# }
f <- system.file("extdata", "S2008001.L3m_DAY_CHL_chlor_a_9km.nc", package = "ncmeta")
nc_inq(f)
#> # A tibble: 1 × 5
#> ndims nvars ngatts unlimdimid filename
#> <int> <int> <int> <int> <chr>
#> 1 4 4 65 NA /home/runner/work/_temp/Library/ncmeta/extdata/…
nc_var(f, 0)
#> # A tibble: 1 × 18
#> id name type ndims dimids natts chunksizes cache_bytes cache_slots
#> <int> <chr> <chr> <int> <list> <int> <list> <dbl> <dbl>
#> 1 0 chlor_a NC_FLOAT 2 <int> 12 <dbl [2]> 16777216 4133
#> # ℹ 9 more variables: cache_preemption <dbl>, deflate <int>, shuffle <lgl>,
#> # big_endian <lgl>, fletcher32 <lgl>, szip_options <int>, szip_bits <int>,
#> # filter_id <list>, filter_params <list>
nc_dim(f, 0)
#> # A tibble: 1 × 4
#> id name length unlim
#> <int> <chr> <dbl> <lgl>
#> 1 0 lat 2160 FALSE
nc_vars(f)
#> # A tibble: 4 × 5
#> id name type ndims natts
#> <int> <chr> <chr> <int> <int>
#> 1 0 chlor_a NC_FLOAT 2 12
#> 2 1 lat NC_FLOAT 1 5
#> 3 2 lon NC_FLOAT 1 5
#> 4 3 palette NC_UBYTE 2 0
nc_dims(f)
#> # A tibble: 4 × 4
#> id name length unlim
#> <int> <chr> <dbl> <lgl>
#> 1 0 lat 2160 FALSE
#> 2 1 lon 4320 FALSE
#> 3 2 rgb 3 FALSE
#> 4 3 eightbitcolor 256 FALSE