Of Spencer Graves
Sent: Tuesday, May 21, 2013 12:21 PM
To: Prof Brian Ripley
Cc: r-devel@r-project.org
Subject: Re: [Rd] Objects created by more than one data call?
On 5/21/2013 9:03 AM, Prof Brian Ripley wrote:
On 21/05/2013 16:51, Spencer Graves wrote:
On 5/21/2013 7:47 AM, Prof Brian Ripley wrote:
On 21/05/2013 15:28, Spencer Graves wrote:
On 5/20/2013 10:10 PM, Prof Brian Ripley wrote:
On 21/05/2013 00:12, Spencer Graves wrote:
Hello, All:
If I use LazyData with the Ecdat package on R-Forge, "R CMD
check" reports "no visible binding for global variable
'nonEnglishNames'", where 'nonEnglishNames' is a dataset in Ecdat
used
as the default argument for a function. With LazyData, that NOTE
disappears. However, then I get, "Warning: objects 'Hstarts',
'Hstarts', 'MedExp' are created by more than one data call".
What do you suggest I do to fix this problem?
Not create the objects in more than one data() call.
Check what each of your data() calls produces.
Thanks. How do I do that?
Call data() on each in turn, and see what files get added to an empty
workspace.
Like the following?
You missed the 'empty'. Look at tools:::data2LazyLoadDB to see how
this is checked.
Thanks for the suggestion. Unfortunately, I tried that function,
including stepping through it line by line, fixing references to other
functions not exported from tools, without enlightenment; see below.
Thanks again,
Spencer
> lib.loc = NULL
> package='Ecdat'
> pkgpath <- find.package(package, lib.loc, quiet = TRUE)
> pkgpath
[1] "C:/Users/sgraves/pgms/R/R-3.0.0/library/Ecdat"
> dataDir <- file.path(pkgpath, "data")
> dataDir
[1] "C:/Users/sgraves/pgms/R/R-3.0.0/library/Ecdat/data"
> enc <- tools:::.read_description(file.path(pkgpath,
"DESCRIPTION"))["Encoding"]
> enc
<NA>
NA
> if (!is.na(enc)) {
+ op <- options(encoding = enc)
+ on.exit(options(encoding = op[[1L]]))
+ }
> file_test("-d", dataDir)
[1] TRUE
> file.path(dataDir, "Rdata.rds")
[1] "C:/Users/sgraves/pgms/R/R-3.0.0/library/Ecdat/data/Rdata.rds"
> (file.exists(file.path(dataDir, "Rdata.rds")) &&
file.exists(file.path(dataDir,
+ paste(package, "rdx", sep = "."))) &&
file.exists(file.path(dataDir,
+ paste(package, "rdb", sep = "."))))
[1] FALSE
> file.exists(file.path(dataDir,
+ paste(package, "rdx", sep = ".")))
[1] FALSE
> file.path(dataDir,
+ paste(package, "rdx", sep = "."))
[1] "C:/Users/sgraves/pgms/R/R-3.0.0/library/Ecdat/data/Ecdat.rdx"
> dataEnv <- new.env(hash = TRUE)
> tmpEnv <- new.env()
> f0 <- files <- list_files_with_type(dataDir, "data")
Error: could not find function "list_files_with_type"
> f0 <- files <- tools:::list_files_with_type(dataDir, "data")
> files <- unique(basename(file_path_sans_ext(files,
+ TRUE)))
Error in basename(file_path_sans_ext(files, TRUE)) :
could not find function "file_path_sans_ext"
> files <- unique(basename(tools:::file_path_sans_ext(files,
+ TRUE)))
> dlist <- vector("list", length(files))
> files
character(0)
> names(dlist) <- files
> loaded <- character(0L)
> loaded
character(0)
> for (f in files) {
+ utils::data(list = f, package = package, lib.loc =
lib.loc,
+ envir = dataEnv)
+ utils::data(list = f, package = package, lib.loc =
lib.loc,
+ envir = tmpEnv)
+ tmp <- ls(envir = tmpEnv, all.names = TRUE)
+ rm(list = tmp, envir = tmpEnv)
+ dlist[[f]] <- tmp
+ loaded <- c(loaded, tmp)
+ }
> dup <- duplicated(loaded)
> dup
logical(0)
> if (any(dup))
+ warning(sprintf(ngettext(sum(dup), "object %s is
created by more than one data call",
+ "objects %s are created by more than one data call"),
+ paste(sQuote(loaded[dup]), collapse = ", ")),
+ call. = FALSE, domain = NA)
> if (length(loaded)) {
+ dbbase <- file.path(dataDir, "Rdata")
+ makeLazyLoadDB(dataEnv, dbbase, compress = compress)
+ saveRDS(dlist, file.path(dataDir, "Rdata.rds"),
+ compress = compress)
+ unlink(f0)
+ if (file.exists(file.path(dataDir, "filelist")))
+ unlink(file.path(dataDir, c("filelist", "Rdata.zip")))
+ }
>
> library(Ecdat)
> objects()
character(0)
> (data(Hstarts))
[1] "Hstarts"
> (data(MedExp))
[1] "MedExp"
> objects()
[1] "Hstarts" "MedExp"
> sessionInfo()
R version 3.0.0 (2013-04-03)
Platform: i386-w64-mingw32/i386 (32-bit)
locale:
[1] LC_COLLATE=English_United States.1252
[2] LC_CTYPE=English_United States.1252
[3] LC_MONETARY=English_United States.1252
[4] LC_NUMERIC=C
[5] LC_TIME=English_United States.1252
attached base packages:
[1] stats graphics grDevices utils datasets methods base
other attached packages:
[1] Ecdat_0.2-3
loaded via a namespace (and not attached):
[1] tools_3.0.0
Thanks,
Spencer
In the "man" directory, I just did "grep 'data(MedExp' *.Rd",
which identified only "MedExp.Rd:\usage{data(MedExp)}"; "grep
'data(Hstarts *.Rd" similarly returned only
"Hstarts.Rd:\usage(data(Hstarts)}".
Thanks again for the reply.
Spencer
Thanks,
Spencer Graves
> sessionInfo()
R version 3.0.0 (2013-04-03)
Platform: i386-w64-mingw32/i386 (32-bit)
locale:
[1] LC_COLLATE=English_United States.1252
[2] LC_CTYPE=English_United States.1252
[3] LC_MONETARY=English_United States.1252
[4] LC_NUMERIC=C
[5] LC_TIME=English_United States.1252
attached base packages:
[1] stats graphics grDevices utils datasets methods base
other attached packages:
[1] Ecdat_0.2-3
loaded via a namespace (and not attached):
[1] tools_3.0.0
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