March 7, 2016
+ +What is dataRetrival?
Where does the data come from?
+ +What does dataRetrival do to the data?
How to discover data?
+ +
More information:
- -The dataRetrieval package was created to simplify the process of getting hydrologic data in the R environment. It has been specifically designed to work seamlessly with the EGRET package: -Exploration and Graphics for RivEr Trends (EGRET) -
+ -If you are new to R, you will need to first install the latest version of R, which can be found here. -Although there are many options for running and editing R code, a nice enviornment to learn R is RStudio. RStudio can be downloaded here. -Once you have set up your R enviornment, you can follow the directions here to download and install the dataRetrieval package. -
+ -To install the dataRetrieval package, use the following command:
-
-install.packages("dataRetrieval",
-repos=c("http://usgs-r.github.com","http://cran.us.r-project.org"),
-dependencies=TRUE,
-type="both")
-
Robert Hirsch and Laura De Cicco
-For questions, please contact @ldecicco-USGS, or email egret_comments@usgs.gov
+
+
+## NWIS Overview (US Geological Survey water data)
+
+* Unit Data
+ + "Real-time" data
+ + Available data from 2007 (big improvement from 120 days!)
+
+* Daily Data
+ + Data aggregated from the unit data to a daily statistic
+ + This data can go back many decades
+
+* Discrete Data
+ + Water quality data
+ + Groundwater level
+ + Rating curves
+ + Surfacewater measurements
+
+* Meta Data
+ + Site information
+ + Parameter information
+
+## NWIS Links
+More information:
+
+[Water Services](http://waterservices.usgs.gov/)
+
+[Help](http://help.waterdata.usgs.gov/)
+
+## Water Quality Portal
+[Water Quality Portal](http://www.waterqualitydata.us/)
+
+## Slide with R Output
+
+```{r cars, echo = TRUE}
+summary(cars)
+```
+
+## Slide with Plot
+
+```{r pressure}
+plot(pressure)
+```
+