| Title: | Scrape Lake Metadata Tables from Wikipedia |
| Version: | 0.7.0 |
| Description: | Scrape lake metadata tables from Wikipedia https://www.wikipedia.org/. |
| Imports: | rvest, stringi, WikipediR, xml2, sp, graphics, stringr, selectr, units, dplyr, tidyr |
| URL: | https://github.com/jsta/wikilake |
| BugReports: | https://github.com/jsta/wikilake/issues |
| Depends: | R (≥ 3.3.0), maps |
| License: | GPL-2 | GPL-3 [expanded from: GPL (≥ 2)] |
| Encoding: | UTF-8 |
| LazyData: | true |
| RoxygenNote: | 7.2.3 |
| Suggests: | knitr, rmarkdown, testthat, reticulate |
| VignetteBuilder: | knitr |
| NeedsCompilation: | no |
| Packaged: | 2022-12-27 21:12:52 UTC; jemma |
| Author: | Jemma Stachelek 
[aut, cre] |
| Maintainer: | Jemma Stachelek <jemma.stachelek@gmail.com> |
| Repository: | CRAN |
| Date/Publication: | 2023-01-06 17:20:09 UTC |
Scrape Wikipedia lakes metadata
Description
Scrape Wikipedia lakes metadata
Author(s)
dms2dd
Description
Convert numeric coordinate vectors in degrees, minutes, and seconds to decimal degrees
Usage
dms2dd(x)
Arguments
x |
numeric vector of length 3 corresponding to degrees, minutes, and seconds |
Examples
dt <- rbind(c(25,12,53.66),c(-80,32,00.61))
apply(dt, 1, function(x) dms2dd(x))
get_lake_wiki
Description
get_lake_wiki
Usage
get_lake_wiki(lake_name, cond = NA)
Arguments
lake_name |
character |
cond |
character stopping condition |
Examples
## Not run:
get_lake_wiki("Lake Nipigon")
## End(Not run)
Clean output of lake_wiki
Description
Currently the only operation is to standardize the units of numeric fields. See the output units with the unit_key_ function.
Usage
lake_clean(dt)
Arguments
dt |
output of the lake_wiki function |
Examples
## Not run:
dt <- lake_wiki(c("Lake Mendota","Flagstaff Lake (Maine)"))
dt_clean <- lake_clean(dt)
dt <- lake_wiki(c("Lake Mendota","Trout Lake (Wisconsin)"))
dt_clean <- lake_clean(dt)
## End(Not run)
lake_wiki
Description
lake_wiki
Usage
lake_wiki(lake_name, map = FALSE, clean = TRUE, ...)
Arguments
lake_name |
character |
map |
logical produce map of lake location? |
clean |
logical enforce standardized units following wikilake::unit_key_()? |
... |
arguments passed to maps::map |
Examples
## Not run:
lake_wiki("Lake Peipsi")
lake_wiki("Flagstaff Lake (Maine)")
lake_wiki("Lake George (Michigan-Ontario)")
lake_wiki("Lake Michigan", map = TRUE, "usa")
lake_wiki("Lac La Belle, Michigan")
lake_wiki("Lake Antoine")
lake_wiki("Lake Baikal")
lake_wiki("Dockery Lake (Michigan)")
lake_wiki("Coldwater Lake")
lake_wiki("Bankson Lake")
lake_wiki("Fisher Lake (Michigan)")
lake_wiki("Beals Lake")
lake_wiki("Devils Lake (Michigan)")
lake_wiki("Lake Michigan")
lake_wiki("Fletcher Pond")
lake_wiki("Lake Bella Vista (Michigan)")
lake_wiki("Lake Mendota")
lake_wiki("Lake Mendota", map = TRUE, "usa")
lake_wiki("Lake Nipigon", map = TRUE, regions = "Canada")
lake_wiki("Trout Lake (Wisconsin)")
# a vector of lake names
lake_wiki(c("Lake Mendota","Trout Lake (Wisconsin)"))
lake_wiki(c("Lake Mendota","Trout Lake (Wisconsin)"), map = TRUE)
# throws warning on redirects
lake_wiki("Beals Lake")
# ignore notability box
lake_wiki("Rainbow Lake (Waterford Township, Michigan)")
## End(Not run)
lake_wiki_browser
Description
lake_wiki_browser
Usage
lake_wiki_browser(lake_wiki_obj = NA, lake_names = NA)
Arguments
lake_wiki_obj |
data.frame output of lake_wiki |
lake_names |
fallback character vector of lake names |
Examples
## Not run:
lake_wiki_browser(lake_names = "Lake Mendota")
lake_wiki_browser(lake_names = c("Lake Mendota", "Lake Champlain"))
lake_wiki_browser(lake_wiki(c("Lake Mendota", "Lake Champlain")))
## End(Not run)
map_lake_wiki
Description
map_lake_wiki
Usage
map_lake_wiki(res, ...)
Arguments
res |
data.frame output of get_lake_wiki |
... |
arguments passed to maps::map |
Examples
## Not run:
map_lake_wiki(lake_wiki("Corey Lake"), database = "usa")
map_lake_wiki(lake_wiki("Lake Nipigon"), regions = "Canada")
## End(Not run)
Michigan Lakes
Description
Metadata of Michigan lakes scraped from Wikipedia.
Format
A data frame with 48 columns and 177 rows:
Name: lake name
Location: location description
Primary inflows: rivers and streams
Basin countries: countries
Surface area: hectares
Max. depth: meters
Surface elevation: meters
Lat: decimal degrees
Lon: decimal degrees
Primary outflows: rivers and streams
Average depth: meters
Max. length: meters
Max. width: meters
Parse string representation of units package quantities
Description
Parse string representation of units package quantities
Usage
parse_unit_brackets(x, target_unit = NA)
Arguments
x |
character string with unit in brackets |
target_unit |
target unit to convert to. optional |
Examples
x <- "1 [m]"
x <- "8.5 [m]"
parse_unit_brackets(x, "feet")
tidy_lake_df
Description
tidy_lake_df
Usage
tidy_lake_df(lake)
Arguments
lake |
data.frame output of get_lake_wiki |