data("Adult") list <- LIST(Adult[1:5], decode = FALSE) list_decoded1 <- decode(list, itemLabels = itemLabels(Adult)) list_decoded2 <- LIST(Adult[1:5]) ### no list element names for decode = FALSE names(list_decoded2) <- NULL expect_equal(list_decoded1, list_decoded2) ## Example 2: Manually create an itemMatrix data <- list( c("income=small", "age=Young"), c("income=large", "age=Middle-aged") ) iM <- encode(data, itemLabels = Adult) ### non existing item are dropped with a warning now. data2 <- list( c("income=small", "age=Young"), c("income=large", "not_an_item") ) expect_warning(iM <- encode(data2, itemLabels = Adult)) expect_identical(size(iM), c(2L, 1L)) ### test encoding iM <- encode(list(c(1, 2, 3), c(4, 5)), itemLabels(Adult)) expect_identical(size(iM), c(3L, 2L)) expect_error(encode(list(c(1, 2, 3), c(4, 5.5)), itemLabels(Adult))) expect_error(encode(list(c(1, 2, 3), c(4, 5, nitems(Adult) + 1L)), itemLabels(Adult)))