Thank you for your help.
I am saving the project when I close RStudio. I assumed, though, that if I cleared the Environment Data it would save an empty environment.
When I try to import the data I get no error message, just:
MD <- read.table("MD.csv", h=T, sep=",")
The csv file header is:
film,rep,dose,ldose,rdose,t_read,t_irrad,w458nm,w532nm,w590nm,w625nm
MD,r1,8.31,0.92,3.563,25.8,4.6,1.030600942,1.014614243,1.016071731,0.97983871
MD,r1,8.31,0.92,3.563,25.8,4.6,0.993630573,0.976335312,0.986127559,0.969102823
I don't know how to get the SessionInfo() for you, I get the error:
Error in SessionInfo() : could not find function "SessionInfo"
I assume I need to load some package for this?