knitr::opts_chunk$set( collapse = TRUE, comment = "#>", fig.path = "README-" )
Extra functions to interact with the GIS module of LAGOSNE.
Easy: Convenience functions allow for straight-forward subsetting.
Fast: Queries are optimized for speed to avoid loading the entirety of massive layers.
Flexible : Custom queries can be constructed using SQL
statements.
remotes::install_github("cont-limno/LAGOSNEgis")
library(LAGOSNEgis)
lagosnegis_get()
library(sf) sf::st_layers(LAGOSNEgis:::lagosnegis_path())
ly <- sf::st_layers(LAGOSNEgis:::lagosnegis_path()) knitr::kable(data.frame(ly[c("name", "driver", "features", "fields")]))
res_iws <- query_gis(layer = "IWS", id_name = "lagoslakeid", ids = c(34352)) res_lake <- query_gis(layer = "LAGOS_NE_All_Lakes_4ha", id_name = "lagoslakeid", ids = 34352) res_pnt <- query_gis(layer = "LAGOS_NE_All_Lakes_4ha_POINTS", id_name = "lagoslakeid", ids = 34352)
res <- query_wbd(lagoslakeid = c(7010))
SQL
statementsres <- query_gis_(query = "SELECT * FROM IWS WHERE lagoslakeid IN ('7010');")
Soranno P., K. Cheruvelil. 2017. LAGOS-NE-GIS v1.0: A module for LAGOS-NE, a multi-scaled geospatial and temporal database of lake ecological context and water quality for thousands of U.S. Lakes: 2013-1925. Environmental Data Initiative. http://dx.doi.org/10.6073/pasta/fb4f5687339bec467ce0ed1ea0b5f0ca. Dataset accessed 9/26/2017.
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