cran

When I run R CMD check --as-cran on my package, the one note I still get is: checking CRAN incoming feasibility ... NOTE Maintainer:[my name] <my email> I can't seem to find a good explanation of this note, although I haven't read anything that tells my I should be concerned about it. As anyone else run into this? Is there anything I can do that will clear the note? According to CRAN Maintainer Uwe Ligges, This is just a note that reminds CRAN maintainers to check that the submission comes actually from his maintainer and not anybody else. Thus, it is safe to ignore such a message. These

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I am trying to compile a small package that I've made. This package uses Rcpp and RcppArmadillo. Everything was working well until I updated my mac to Sierra (version 10.12.5). I have now the following error message when building the package from Rstudio (version 1.0.143): Error in Rcpp::compileAttributes() : Evaluation error: no native symbols were extracted. Calls: source ... withVisible -> eval -> eval -> <Anonymous> -> .Call Execution halted Any idea what this is and how it can be fixed? Thank you very much! 回答1: I have the same error

It there an easy way to skip the execution of some tests in a package if the package is tested by CRAN? The background is, I like to have a lot of tests and in sum they are time consuming (not good for CRAN). I know there is testthat::skip_on_cran() but I do not want to use package testthat to avoid another dependency. I am looking for an el-cheapo way to mimic testthat::skip_on_cran . Ideally, I would like to have a testfile in directory pkg/tests that calls the tests (testfiles) and distuingishes if we are on cran or not: if (!on_cran) { ## these tests are run only locally/when not on CRAN #

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I am working on a spatial problem using the sf package in conjunction with dplyr and purrr . I would prefer to perform spatial operations inside a mutate call, like so: simple_feature %>% mutate(geometry_area = map_dbl(geometry, ~ as.double(st_area(.x)))) I like that this approach allows me to run a series of spatial operations using %>% and mutate . I dislike that this approach seems to significantly increase the run-time of the sf functions (sometimes prohibitively) and I would appreciate hearing suggestions about how to overcome this

According to the R News for v2.14: All packages must have a namespace, and one is created on installation if not supplied in the sources. This means that any package without a namespace must be re-installed under this version of R (but data-only packages without R code can still be used). How do I programatically detect which packages installed under 2.13.x don't have a namespace so I know what needs to be updated? The function packageHasNamespace holds the key. Use it together with installed.packages : The following code loops through all of the library locations in .libPaths : pkgNS <- NULL

According to the release notes for 2.15: There are new options for more rigorous testing by R CMD check selected by environment variables – see the ‘Writing R Extensions’ manual. Is "more rigorous" relative to the default set of checks? I can't find the supporting text in the manual. I'm sure I'm just missing it What options do I specify to perform the MOST rigorous testing? Try R CMD check --as-cran foo_1.2-3.tar.gz The new --as-cran option gathers a few of these together; this was discussed on r-devel. Also, a few weeks before R 2.15.0 came out, I added this to ~/.R/check.Renviron . These

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I'm trying to install a package through the R prompt by doing the following: install.packages('RMySQL') But the output is as follows: --- Please select a CRAN mirror for use in this session --- And nothing else! I can't find a solution to this very basic problem. What am I supposed to type in order to select a CRAN mirror? EDIT: OS: Mac-OS X 10.6.8 R Version: 2.15.0 回答1: You should either get a window with a list of repositories or a text menu with some options. But if that is not appearing, you can always specify the mirror from where to

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 由 翻译 强力驱动 问题: How do I go about positioning a JDialog at the center of the screen? 回答1: In Java 1.4+ you can do: final JDialog d = new JDialog (); d . setSize ( 200 , 200 ); d . setLocationRelativeTo ( null ); d . setVisible ( true ); Or perhaps (pre 1.4): final JDialog d = new JDialog (); d . setSize ( 200 , 200 ); final Toolkit toolkit = Toolkit . getDefaultToolkit (); final Dimension screenSize = toolkit . getScreenSize (); final int x = ( screenSize . width - d . getWidth ()) / 2 ; final int y = ( screenSize . height - d . getHeight ()) / 2