我正在编写一个包，如果我在我的Rstudio中运行它运行但是当我将它提供给R CMD检查运行时，它无法识别S3方法 . 我有一个通用的方法：
count_kmers <- function(obj, klen = 6, parallel = TRUE,
nproc = ifelse(parallel, comm.size(), 1),
distributed = FALSE) {
UseMethod("count_kmers", obj)
}
然后是替代方法：
count_kmers.character <- function(obj, klen = 6, parallel = TRUE,
nproc = ifelse(parallel, comm.size(), 1),
distributed = FALSE) {...}
count_kmers.AAStringSet <- function(obj, klen = 6, parallel = TRUE,
nproc = ifelse(parallel, comm.size(), 1),
distributed = FALSE){...}
现在我在我的文档中运行的示例是：
seqs <- AAStringSet(c("seq1"="MLVVD",
"seq2"="PVVRA",
"seq3"="LVVR"))
## Count the kmers and generate a dataframe of the frequencies
freqs <- count_kmers(seqs, klen = 3, parallel = FALSE)
head(freqs)
如果我将代码作为普通代码运行它可以工作，但如果我使用R CMD检查它，那么它会抱怨：
Error in UseMethod("count_kmers", obj) :
no applicable method for 'count_kmers' applied to an object of class "c('AAStringSet', 'XStringSet', 'XRawList', 'XVectorList', 'List', 'Vector', 'list_OR_List', 'Annotated')"
AAStringSet是Biostrings包中的对象 . 但这没关系，即使我将一个字符串传递给count_kmers，我收到同样的错误，但是说：
no applicable method for 'count_kmers' applied to an object of class "character".