read.flow: Reads a rdb formatted data file from the USGS web site or...

In IHA: This package implements The Nature Conservancy's Indicators of Hydrologic Alteration software in R.

Description

This function reads hydrology data from the waterdata.usgs.gov site or from a file (that is in the USGS rdb format).

Usage

  read.flow(site, start.date, end.date = NULL, gauge = F,
    file = NULL)

Arguments

site	the USGS site_no as a string
start.date	a starting date in a format convertible to a date using as.Date
end.date	an ending data in a format convertible to a date using as.Date
gauge	logical describing whether you want gauge height data in addition to flow
file	a file name if you are reading from a text file

Value

A data frame with date and discharge. If gauge was TRUE, it also includes gauge height. Data qualifiers are included also and their meaning can be looked up on the USGS web site.

Author(s)

Jason Law <[e-mail]>

References

http://waterdata.usgs.gov/nwis

Examples

d <- read.flow('14211820', start.date = ISOdate(2008,1,1))
head(d)

IHA documentation built on May 2, 2019, 5:15 p.m.