facebook/prophet

Rcpp error when using prophet::prophet() instead of library(prophet)

Open

#285 创建于 2017年8月31日

在 GitHub 查看
 (7 评论) (2 反应) (0 负责人)Python (17,686 star) (4,451 fork)batch import
bughelp wanted

描述

When I don't use library(prophet) and instead use the fully-qualified prophet::prophet, I get the following in my console:

ds <- seq(as.Date('2005-04-01'), as.Date('2005-09-03'), by='day') x <- (1:length(ds))/length(ds) y <- rnorm(length(ds), x * (1 - x) + 0.5, 0.1) prophet::prophet(data.frame(ds = ds, y = y), yearly.seasonality = FALSE)

Error in .Object$initialize(...) : could not find function "cpp_object_initializer" failed to create the optimizer; optimization not done Error in matrix(m$params[[name]], nrow = n.iteration) : 'data' must be of a vector type, was 'NULL'

I'm using the latest revision from master (via devtools::install_github('facebookincubator/prophet', subdir='R'))

贡献者指南

技术栈
cpp
领域
backend
议题类型
bug
难度面向新贡献者的预计实现难度，1 表示很小改动，5 表示专家级工作。
3
预计时间有经验贡献者完成调查、实现、测试并准备 pull request 的粗略时间范围。
1-3 hours
活动状态议题当前的可参与程度：新鲜、活跃、陈旧、阻塞或等待维护者输入。
stale
清晰度议题是否清楚说明期望改动、验收标准和下一步。
clear
前置要求
R programmingRcpp basics
新手友好度1-100 的估计分数，表示该议题对首次贡献者的友好程度。
40
研究方向
Investigate how the Rcpp module for prophet is loaded. The error 'could not find function cpp object initializer' when using prophet::prophet suggests that the C++ module is not initialized when the package is accessed via :: without attaching. Look at the R package initialization code, typically in R/zzz.R, to see if the Rcpp module is loaded in .onLoad or only in .onAttach. Also examine the C++ source in src/ and the RcppExports.R file. Check the issue comments for any additional debugging or hints. The fix likely involves ensuring the Rcpp module is loaded at package load time rather than attachment.