Once you have imported your data into R, and perhaps also done some data processing steps, you may want to save it in R’s format for future use.
save(RheumArth, file ="RheumArth_working.RData")
To later load that data, use load:
# NOTE: The dataset could have any name, not necessarily the # name of the file in your computer. It will be called whatever# it was called in R when you saved it.load("RheumArth_working.RData")