Get the names of the columns and data type of the data product

Get the names of the columns and data type of the data product

Usage

mrp_colnames(layer)

Arguments

layer

(character) Identifier of the data product. See mrp_list

Value

A data frame with the column names and data type in the Marine Regions data product

Details

This function becomes useful to write CQL or OGC filters that you can pass to mrp_get() or mrp_view() as it allows you to know the column names and the data types beforehand. Use it together with mrp_col_unique() to know all the possible values in the column name that you want to query on.

The actual description of each column is available only to the Maritime Boundaries products. See https://marineregions.org/eezattribute.php

See also

mrp_list to describe the list of products, mrp_col_unique() to get the unique values of a the columns of a data product, useful to write queries that can be passed to mrp_get() or mrp_view() via the arguments cql_filter or filter.

Examples

# \donttest{
mrp_colnames("eez")
#> # A tibble: 31 × 3
#>    layer colname    type  
#>  * <chr> <chr>      <chr> 
#>  1 eez   mrgid      int   
#>  2 eez   geoname    string
#>  3 eez   mrgid_ter1 int   
#>  4 eez   pol_type   string
#>  5 eez   mrgid_sov1 int   
#>  6 eez   territory1 string
#>  7 eez   iso_ter1   string
#>  8 eez   sovereign1 string
#>  9 eez   mrgid_ter2 int   
#> 10 eez   mrgid_sov2 int   
#> # ℹ 21 more rows
mrp_colnames("ecoregions")
#> # A tibble: 6 × 3
#>   layer      colname   type   
#> * <chr>      <chr>     <chr>  
#> 1 ecoregions eco_code  long   
#> 2 ecoregions ecoregion string 
#> 3 ecoregions lat       decimal
#> 4 ecoregions long      decimal
#> 5 ecoregions placetype string 
#> 6 ecoregions mrgid     int    
# }