我想用另一個數據幀中的值替換一個數據幀中的值,前提是第一個數據幀中存在一個值。R:將數據幀中的值替換爲NA作爲佔位符
第一個數據幀由值爲1或0的值組成,NA爲佔位符。
a <- structure(list(A.1 = c(1L, 0L, NA, 1L, 1L, 0L), A.2 = c(1L, 1L,
1L, NA, 1L, NA), A.3 = c(0L, NA, NA, 0L, NA, NA), A.4 = c(NA,
1L, 1L, NA, 0L, NA), A.5 = c(NA, NA, 1L, NA, NA, NA), A.6 = c(NA,
NA, 1L, NA, NA, 1L)), .Names = c("A.1", "A.2", "A.3", "A.4",
"A.5", "A.6"), class = "data.frame", row.names = c(NA, -6L))
的第二數據幀由應該替換的1或0相對於NAS的他位置在第一數據幀
r <- structure(list(R.1 = c(45L, 33L, 44L, 24L, 32L, 22L), R.2 = c(33L,
99L, 44L, 25L, 25L, 33L), R.3 = c(22L, 77L, 22L, NA, 26L, NA),
R.4 = c(NA, NA, 32L, NA, NA, NA)), .Names = c("R.1", "R.2",
"R.3", "R.4"), class = "data.frame", row.names = c(NA, -6L))
目標是此值的:
d <- structure(list(D.1 = c(45L, 33L, NA, 24L, 32L, 22L), D.2 = c(33L,
99L, 44L, NA, 25L, NA), D.3 = c(22L, NA, NA, 25L, NA, NA), D.4 = c(NA,
77L, 44L, NA, 26L, NA), D.5 = c(NA, NA, 22L, NA, NA, NA), D.6 = c(NA,
NA, 32L, NA, NA, 33L)), .Names = c("D.1", "D.2", "D.3", "D.4",
"D.5", "D.6"), class = "data.frame", row.names = c(NA, -6L))
任何&所有建議歡迎。
這個目標看起來就像第一個輸入。複製並粘貼錯誤? – MvG 2012-07-25 21:45:23
@MvG是的,這是一個複製和粘貼錯誤。對於那個很抱歉! – Jose 2012-07-25 21:54:57
當'a'和'r'有6個時,爲什麼'd'有5行? – Seth 2012-07-25 22:04:55