numara (ogrenciler)=c("101","102","103 ","105","106","107","108", "109")
numara(ogrenciler)=c(101,102,103,105,1 06,107,108,109)
name(ogrenciler)=c("101","102","103"," 105","106","107","108", "109")
names(ogrenciler)=c("101","102","103", "105","106","107","108", "109")
names(ogrenciler)=c(101,102,103,105,10 6,107,108,109)