aqtsra, Utilities for preprocessing raw and approved unit-value time-series hydrometeorological data before statistical endeavors

The aqtsra package in the R language provides a light-weight utility for merging U.S. Geological Survey National Water Information System (NWIS) flat-file tables of raw and approved unit-value time-series data from the AQUARIUS Time-Series software. Provision is made for parsing time stamps, insertion of the day fraction into the year, and days since last site visit among other limited data-inspection and export utilities. The package documents a workflow of data preparation before subsequent statistical endeavors.