Why does it change to char. after my marked code?
firstname = c("Thomas","Max","Sebi","Jogi","Anna")
lastname = c("Haberl", "Mustermann", "Boehm", "Pfennig", "Mayer")
yearofbirth = c(2000,1995,2000,1999,1992)
agecategory = c("child", "elderly", "adult", "adult", "adolescent")
#3.2
thirdPerson = paste(firstname[3], lastname[3])
#3.3
mydataframe = data.frame(firstname, lastname,yearofbirth,agecategory,stringsAsFactors = FALSE)
#3.4
firstandlastname = paste(mydataframe$firstname,mydataframe$lastname)
#3.5
newMember = c("Franz","Huber",1950,"adult")
#3.6
mydataframe = rbind.data.frame(mydataframe,newMember,stringsAsFactors = FALSE)