+roster.merged <- merge(myuw, gs, by.x="StudentNo", by.y="Your.UW.student.number", all.x=TRUE, all.y=FALSE)
+
+roster.merged[,c("StudentNo", "Email", "FirstName", "LastName", "Your.username.on.the.class.Discord.server", "checked.off.on.discord")][!roster.merged$StudentNo %in% gs$Your.UW.student.number,]
+## these are students who are in the class but didn't reply to the form
+
+