This R package provides tools to access PX-WEB API. Your contributions and bug reports and other feedback are welcome!
Installation (Installation)
Examples (Examples)
A number of organizations use to distribute hierarchical data. You can browse the available data sets at:
Install the stable release version in R:
install.packages("pxweb")Install the latest version from github:
install.packages("devtools")
devtools::install_github("pxweb","rOpenGov")Test the installation by loading the library:
library(pxweb)A tutorial is included with the package with:
vignette(topic="pxweb")We also recommend setting the UTF-8 encoding:
Sys.setlocale(locale="UTF-8") Some examples on using the R tools to fetch px-web API data.
library(pxweb)
print(api_catalogue()[1:2])## [[1]]
## Api: statistik.sjv.se
## The Swedish agricultural authority
## Version(s) : v1
## Language(s) : sv
## Limit(s) : 10 calls per 10 sec.
## 1000 values per call.
## Url template :
## http://statistik.sjv.se/PXWeb/api/[version]/[lang]
##
## [[2]]
## Api: pxweb.orebro.se
## Open data from the municipality Orebro in Sweden.
## Version(s) : v1
## Language(s) : sv
## Limit(s) : 10 calls per 10 sec.
## 1000 values per call.
## Url template :
## http://pxweb.orebro.se/api/[version]/[lang]Interactive API query (not run):
# Get data from SCB (Statistics Sweden)
d <- interactive_pxweb(api = "api.scb.se")
# Fetching data from the swedish SCB (Statistics Sweden) pxweb API:
d <- interactive_pxweb(api = "api.scb.se", version = "v1", lang = "sv")
# Fetching data from statfi (Statistics Finland)
d <- interactive_pxweb(api = "pxwebapi2.stat.fi")If a pxweb api is missing in the api catalogue, you can just add the api yourself in the following way.
# Create a pxweb api object
my_api <-
pxweb_api$new(api = "foo.bar",
url = "http://api.foo.bar/[lang]/[version]",
description = "My own pxweb api",
languages = "en", # Languages
versions = "v1", # Versions
calls_per_period = 1,
period_in_seconds = 2,
max_values_to_download = 10)
# Test that the api works
my_api$test_api()
# Add the api to the api catalogue
my_api$write_to_catalogue()This work can be freely used, modified and distributed under the open license specified in the DESCRIPTION file.
Kindly cite the work as follows
citation("pxweb")##
## Kindly cite the pxweb R package as follows:
##
## (C) Mans Magnusson, Leo Lahti and Love Hansson (rOpenGov 2014).
## pxweb: R tools for PX-WEB API. URL:
## http://github.com/ropengov/pxweb
##
## A BibTeX entry for LaTeX users is
##
## @Misc{,
## title = {pxweb: R tools for PX-WEB API},
## author = {Mans Magnusson and Leo Lahti and Love Hansson},
## year = {2014},
## }The data in this RESTful API consists of a metadata part and a data part. Metadata is structured in a hierarchical node tree, where each node contains information about subnodes that are below it in the tree or, if the nodes is at the bottom of the tree structure, the data referenced by the node as well as what dimensions are available for the data at that subnode.
This vignette was created with
sessionInfo()## R version 3.1.1 (2014-07-10)
## Platform: x86_64-apple-darwin13.1.0 (64-bit)
##
## locale:
## [1] sv_SE.UTF-8/sv_SE.UTF-8/sv_SE.UTF-8/C/sv_SE.UTF-8/sv_SE.UTF-8
##
## attached base packages:
## [1] stats graphics grDevices utils datasets methods base
##
## other attached packages:
## [1] pxweb_0.5.0
##
## loaded via a namespace (and not attached):
## [1] data.table_1.9.2 digest_0.6.4 evaluate_0.5.5 formatR_0.10
## [5] htmltools_0.2.4 httr_0.5 jsonlite_0.9.8 knitr_1.6
## [9] plyr_1.8.1 Rcpp_0.11.1 RCurl_1.95-4.1 reshape2_1.4
## [13] RJSONIO_1.2-0.2 rmarkdown_0.2.64 stringr_0.6.2 tools_3.1.1
## [17] yaml_2.1.13