{"accessLevel": "public", "bureauCode": ["010:12"], "contactPoint": {"@type": "vcard:Contact", "fn": "Rochelle A Nustad", "hasEmail": "mailto:ranustad@usgs.gov"}, "description": "This child page contains a zipped folder which contains all files necessary to run trend models and produce results published in U.S. Geological Scientific Investigations Report 2020\u20135079 [Nustad, R.A., and Vecchia, A.V., 2020, Water-quality trends for selected sites and constituents in the international Red River of the North Basin, Minnesota and North Dakota, United States, and Manitoba, Canada, 1970\u20132017: U.S. Geological Survey Scientific Investigations Report 2020\u20135079, 75 p., https://doi.org/10.3133/sir20205079]. The folder contains: six files required to run the R\u2013QWTREND trend analysis tool; a readme.txt file; an alldata.RData file; a siteinfo_appendix.txt: and a folder called \"scripts\". R\u2013QWTREND is a software package for analyzing trends in stream-water quality. The package is a collection of functions written in R (R Development Core Team, 2019), an open source language and a general environment for statistical computing and graphics. \nThe following system requirements are necessary for using R\u2013QWTREND: \n\u2022 Windows 10 operating system \n\u2022 R (version 3.4 or later; 64 bit recommended) \n\u2022 RStudio (version 1.1.456 or later). \nAn accompanying report (Vecchia and Nustad, 2020) serves as the formal documentation for R\u2013QWTREND. Vecchia, A.V., and Nustad, R.A., 2020, Time-series model, statistical methods, and software documentation for R\u2013QWTREND\u2014An R package for analyzing trends in stream-water quality: U.S. Geological Survey Open-File Report 2020\u20131014, 51 p., https://doi.org/10.3133/ofr20201014  \nR Development Core Team, 2019, R\u2014A language and environment for statistical computing: Vienna, Austria, R Foundation for Statistical Computing, accessed June 12, 2019, at https://www.r-project.org.", "distribution": [{"@type": "dcat:Distribution", "accessURL": "https://doi.org/10.5066/P9C9JAMY", "description": "Landing page for access to the data", "format": "XML", "mediaType": "application/http", "title": "Digital Data"}, {"@type": "dcat:Distribution", "description": "The metadata original format", "downloadURL": "https://data.usgs.gov/datacatalog/metadata/USGS.5f1a5d2782cef313ed87a5b4.xml", "format": "XML", "mediaType": "text/xml", "title": "Original Metadata"}], "identifier": "http://datainventory.doi.gov/id/dataset/USGS_5f1a5d2782cef313ed87a5b4", "keyword": ["streamflow", "North Dakota", "USGS:5f1a5d2782cef313ed87a5b4", "Manitoba", "Red River of the North", "datasets", "Minnesota", "stream discharge"], "modified": "2020-08-18T00:00:00Z", "publisher": {"@type": "org:Organization", "name": "U.S. Geological Survey"}, "spatial": "-99.0, 45.305494872747, -95.000000000001, 50.2", "theme": ["geospatial"], "title": "Scripts to run R-QWTREND models and produce results."}