Problem with document() and data: object not found

[Josef Fruehwald]

I'm trying to put together a little R package to distribute data with some collaborators, and I'm getting an error that is driving my nuts, because it's not affecting another package I'm also working on, and as far as I can tell I'm doing things exactly the same.

I've got a clean R session, nothing in the environment, and I've loaded devtools.

> session_info()

Session info------------------------------------------------------------------------------------

 setting  value                       

 version  R version 3.1.1 (2014-07-10)

 system   x86_64, darwin13.1.0        

 ui       RStudio (0.98.1062)         

 language (EN)                        

 collate  en_US.UTF-8                 

 tz       Europe/London               

Packages----------------------------------------------------------------------------------------

 package    * version    date       source                          

 devtools   * 1.6.0.9000 2014-09-30 Github (hadley/devtools@447866d)

 rstudioapi   0.1        2014-03-27 CRAN (R 3.1.0)         

roxygen2 is managing all of the documentation, namespace, etc. I have an .rda file saved in the data/ directory, called "um.rda" 

> system("ls data/")

um.rda

I have an R file in the R directory called data.R

> system("ls R")

UhUm.R

data.R

nonce.R

The contents of data.R right now are

#' Uh and Um data from the PNC

#' @format a data frame

#' @source Philadelphia Neighborhood Corpus

"um"

When I run document(), this is what I get

> document()

Updating UhUm documentation

Loading UhUm

Error: Failure in roxygen block beginning data.R:1

object 'um' not found

Any suggestions about what I'm missing?

-Joe

[Hadley Wickham]

What does (load("data/um.rda")) give ?

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[Josef Fruehwald]

> (load("data/um.rda")) 

[1] "um"

-Joe

[Josef Fruehwald]

Resolved the problem. I hadn't set LazyData: true in the description file. I guess this is something to take up with RStudio, but starting a new package using the New Project>R Package in RStudio doesn't include LazyData: true in the description, while devtools::create() does. 

-Joe

[Hadley Wickham]

Yeah, using the create new project dialog is not currently
recommended. Fixing it to use devtools::create() is on the to do
list.

Hadley