我有這個載體如何通過R中的名稱將矢量轉換爲矩陣?
ID var2 ID var2 var1 ID var2 ID var3
"1000" "1" "1001" "1" "1" "1002" "7" "1003" "3"
可以從
x=c("1000","1","1001","1","1","1002","7","1003","3")
names(x)=c("ID","var2","ID","var2","var1","ID","var2","ID","var3")
獲得,我會把它轉換成該矩陣尺寸爲4×4:
ID var1 var2 var3
"1000" NA "1" NA
"1001" "1" "1" NA
"1002" NA "7" NA
"1003" NA NA "3"
你能幫助我嗎?
好的,非常感謝 –