datamart: Unified interface to your data sources.
Description
This package provides several S4 classes that make it
easier to collect and work with datasets. The package is
inspired by the
https://bitbucket.org/ScraperWiki/scraperwiki{scraperwiki
project}, which provides a webbased service for data
collection. Also inspiring are
http://reference.wolfram.com/mathematica/ref/CountryData.html{Mathematica's
xxxData functions}, which provide in-built parametrizable
datasets.Details
You can specify web resources with the urldata3
and the xsparql functions. You can combine several
resources with the mashup function. For working
with locally saved data, see the internalData
function. The objects instantiated with these functions
can than be passed to the generic query along with
some parameters to get to the data.
Besides parameterized queries ("read" operations), the
package also aims to support "write" operations. For this
purpose, some functions (currently mdreport,
swvreport) for defining targets as well as some
functions (currently blogger and dirloc)
for defining locations are provided. The generic
put then builds the target and puts it at the
defined location.
Some examples aim to proof the concept, for instance
eurostat_web, sourceforge,
oddsportal, and city_coords.
The package is highly experimental, and likely to change
heavily without backward compatiblity.References
Karsten Weinert,
http://factbased.blogspot.com/search/label/datamart{factbased
blogspot.}