Question

我运行devtools::test，它可以正常工作：

$ RScript -e "devtools::test()"
...
OK:       24

但是devtools::check在测试中失败：

$ RScript -e "devtools::check()"
...
> test_check("package")
Error in cpp_object_initializer(.self, .refClassDef, ...) : 
  could not find function "cpp_object_initializer"
Stan model 'bayes_logit' does not contain samples.
── 1. Error: Mixture of Dirichlet Processes stick-breaking works and returns (@t
'data' must be of a vector type, was 'NULL'
1: mdp_logit_mvn_stickbreaking(n_samp = n_samp, mix_mean = NULL, mix_cov = NULL, posterior_sample = stan_sample, 
       prior_sample_size = 1, dataset = german, tol = 1e-08) at testthat/test_stick_breaking.R:35
2: MASS::mvrnorm(n = n_samp, mu = mix_mean, Sigma = mix_cov)
3: eigen(Sigma, symmetric = TRUE)
4: unname(as.matrix(x))
5: as.matrix(x)
6: as.matrix.default(x)
7: array(x, c(length(x), 1L), if (!is.null(names(x))) list(names(x), NULL) else NULL)

我该如何解决？

Answer 1

这是由于加载和附着之间的差异。我从this GitHub issue那里获得了解决方案。

在NAMESPACE中添加此内容以告诉R在哪里找到cpp_object_initialiser：

Depends:
    Rcpp

这可行，但是给您一个注释。为避免出现此注释，请在使用Rstan调用的函数周围添加Roxygen导出：

#' @importFrom Rcpp cpp_object_initializer
function_name <- function(...) {...}

devtools :: check因cpp_object_initializer失败

1 个答案: