getQWData.Rd

\name{getQWData}
\alias{getQWData}
\title{Data Import for USGS NWIS Water Quality Data}
\usage{
getQWData(siteNumber, ParameterCd, StartDate, EndDate, interactive = TRUE)
}
\arguments{
  \item{siteNumber}{string USGS site number.  This is
  usually an 8 digit number}

  \item{ParameterCd}{string USGS parameter code.  This is
  usually an 5 digit number. Multiple parameter codes can
  be inputted with a ';' separator.  Leaving this blank
  will return all of the measured values during the
  specified time period.}

  \item{StartDate}{string starting date for data retrieval
  in the form YYYY-MM-DD.}

  \item{EndDate}{string ending date for data retrieval in
  the form YYYY-MM-DD.}

  \item{interactive}{logical Option for interactive mode.
  If true, there is user interaction for error handling and
  data checks.}
}
\value{
retval dataframe with first column dateTime, and at least
one qualifier and value columns (subsequent qualifier/value
columns could follow depending on requested parameter
codes)
}
\description{
Imports and processes data from NWIS web service. This
function gets the data from here:
\url{http://www.waterqualitydata.us} A list of parameter
codes can be found here:
\url{http://nwis.waterdata.usgs.gov/nwis/pmcodes/} A list
of statistic codes can be found here:
\url{http://nwis.waterdata.usgs.gov/nwis/help/?read_file=stat&format=table}
}
\examples{
# These examples require an internet connection to run
rawProcessedSample <- getQWData('01594440','01075', '1985-01-01', '1985-03-31')
rawProcessedSampleAll <- getQWData('05114000','', '1985-01-01', '1985-03-31')
rawProcessedSampleSelect <- getQWData('05114000','00915;00931', '1985-01-01', '1985-04-30')
}
\keyword{USGS}
\keyword{data}
\keyword{import}
\keyword{service}
\keyword{web}