＜体重、足の大きさの例＞ x1 <- c(180, 184, 160, 167, 161, 169, 175, 174, 166, 173) x2 <- c(29, 28, 25, 25, 26, 24, 25, 28, 24, 27) x1 <- as.matrix(x1, nrow = 10) x2 <- as.matrix(x2, nrow = 10) x <- cbind(x1, x2) colnames(x) <- c("height", …