Keywords: EGRET
![EGRET plotFlowConc using ggplot2](https://staging.waterdata.usgs.gov/blog/static/plotFlowConc/plotFlowConc-1.png)
Using the R packages, ggplot and EGRET, a new function plotFlowConc shows a new way to visualize the changes between flow and concentration.
![Using Random Residuals for Censored Data in EGRET](https://staging.waterdata.usgs.gov/blog/static/rResid/unnamed-chunk-7-2.png)
Using random residuals for censored data in EGRET, and R package. Exploration and Graphics for RivEr Trends (EGRET) is an R-package for the analysis of long-term changes in water quality and streamflow, including the water-quality method Weighted Regressions on Time, Discharge, and Season (WRTDS).