WQ-Review: An R package for discrete water-quality data review and exploration.

This is a minor fix that addresses errors caused by missing QA samples in specified date range.

This package facilitates data review and exploration of discrete water-quality data through rapid and easy-to-use plotting functions and tabular data summaries. Data is imported with user-specified options for single or multiple sites and parameter codes using an ODBC connection to the user's local NWIS server. A graphical user interface allows the user to easily explore their data through a variety of graphical and tabular outputs.