recode2 {Ecdat} | R Documentation |
Recode x1
and x2
per the lexical codes
table.
recode2(x1, x2, codes)
x1, x2 |
vectors of the same length assuming a discrete number of levels |
codes |
a 2-dimensional matrix indexed by the levels of |
1. If length(x1) != length(x2), complain.
2. if(is.logical(x1)) l1 <- c(FALSE, TRUE) else l1 <- unque(x1); ditto for x2.
3. If(missing(codes)) codes <- outer(unique(x1), unique(x2))
4. if(is.null(dim(codes))) dim(codes) <- c(length(unique(x1)), length(unique(x2)))
5. If is.null(rownames(codes)), set as follows: If nrow(codes) == length(unique(x1)), rownames(codes) <- unique(x1). Else, if nrow(codes) = max(x1), set rownames(codes) <- seq(1, max(x1). Else throw an error. Ditto for colnames, ncol, and x2.
6. codes[x1, x2]
a vector of the same length as x1 and x2.
Spencer Graves
contrib <- c(-1, 0, 0, 1) contrib0 <- c(FALSE, FALSE, TRUE, FALSE) contribCodes <- recode2(contrib>0, contrib0, c('returned', 'received', '0', 'ERR') ) cC <- c('returned', 'returned', '0', 'received') all.equal(contribCodes, cC)