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DWML Elements

DWML Design

Retrieving information

Listing resources with list_this(...)

Listing involves retrieving the locations where data may be available. The table below shows an (incomplete and) brief tally of what you can list and the location and resolution info you must provide.

# list the data locations within a bounding box
library(ndfd)
my_list <- list_this('points_in_subgrid', listLon1 = -72, listLon2 = -63, listLat1 = 39, listLat2 = 46, resolutionList =20)
my_list
# [1] "listLon1=-72.00000&listLon2=-63.00000&listLat1=39.00000&listLat2=46.00000&resolutionList=20.00000"

X <- NDFD(my_list)

Retrieving data with query_this(...)

What comes back?

NDFDRefClass has three elements...

• head

• data

• latLonList