adding+labels+to+a+scatterplot+in+R

see http://rtutorialseries.blogspot.com/2010/09/r-tutorial-series-labeling-data-points.html and "C:\kurt\storage\CIM Research Folder\DR\2013\3-9-13\work on paper\example_plot_labelingPoints.txt"

Here's an example program -- enrollmentData <- read.csv("C:/kurt/storage/CIM Research Folder/DR/2013/3-9-13/work on paper/dataset_plot_labelingPoints.csv")
 * 1) Basically load data with a command like

plot(enrollmentData$YEAR, enrollmentData$UNEM)
 * 1) plot the data

library(calibrate)
 * 1) load the necessary library

textxy(enrollmentData$YEAR, enrollmentData$UNEM, enrollmentData$ROLL)
 * 1) add labels to datapoints