[R-es] ayuda con Merge

[daniel]

No se si entendí la pregunta porque no acompañas un ejemplo
reproducible, de cualquier manera ¿es esto lo que buscas?

A <- data.frame(
    a1 = c("aa", "ab", "ac", "ad", "ae"),
    a2 = c("ba", "bb", "bc", "bd", "be"),
    a3 = c("ca", "cb", "cc", "cd", "ce"),
	a4 = c("da", "db", "dc", "dd", "de"),
	a5 = c("ea", "eb", "ec", "ed", "ee"))

B <- data.frame(
    a1 = c("aa", NA, "ac", "ad", "ae"),
    a2 = c("ba", "bb", "bc", NA, "be"),
    a3 = c("ca", "cb", NA, "cd", "ce"),
    b1 = c("1aa", "1ab", "1ac", "1ad", "1ae"),
    b2 = c("2ba", "2bb", "2bc", "2bd", "2be"),
    b3 = c("3ca", "3cb", "3cc", "3cd", "3ce"),
    b4 = c("4aa", "4ab", "4ac", "4ad", "4ae"),
    b5 = c("5ba", "5bb", "5bc", "5bd", "5be"),
    b6 = c("6ca", "6cb", "6cc", "6cd", "6ce"),
	b7 = c("7ca", "7cb", "7cc", "7cd", "7ce"))

(m1 <- merge(A, B, by.x = c("a1", "a2"), by.y = c("a1","a2"))[,-6])

Daniel Merino

El día 22 de noviembre de 2012 15:46, Sebastian Kruk
<residuo.solow en gmail.com> escribió:
> En el B tengo las variables a1, a2, a3, b1, b2, b3,b4, b5, b6, b7.