What judges look for when selecting the projects which earn awards in the North Carolina Science and Engineering fair each year. Students across North Carolina are pasting hypotheses and conclusions ...

Garrett Andrews is an adjunct faculty member in the Department of Political Science at Portland Community College where he teaches State and Local Government. With five years of experience as a writer ...

Sheryl Grey is a freelance writer who specializes in creating content related to education, aging and senior living, and real estate. She is also a copywriter who helps businesses grow through expert ...

See how to join two data sets by one or more common columns using base R’s merge function, dplyr join functions, and the speedy data.table package. R has a number of quick, elegant ways to join data ...