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On Sun, Jun 17, 2012 at 9:09 PM, c s <conradsand.arma at gmail.com> wrote: > Another is > R. I believe R currently doesn't have a JIT compiler (I haven't > checked lately), and hence the very useful...

Hi, is there a a way to access a specific element of a data frame in Rcpp without previous knowledge of the type of the columns? I see from RcppExamples that one can do something like: // construct the data.frame...

Ooops, wrong JIT! Dirk is absolutely right. I meant to say see enableJIT is the compiler package, see http://www.r-statistics.com/2012/04/speed-up-your-r-code-using-a-just-in-time-jit-compiler/ I second Dirk...

Hi, I was wondering why I can serialize a call such as in serialize(call("ripley"), NULL) [1] 58 0a 00 00 00 02 00 03 00 02 00 02 03 00 00 00 00 06 00 00 00 01...

Hi all, I have a list of lists, the inner lists all of the same lengths. I would like to create a new list of lists such that ll[[i]][[j]] == tll[[j]][[i]]`, where the old one is ll...

Check here <https://github.com/RevolutionAnalytics/rmr2/blob/master/pkg/src/t-list.cpp> for something similar to Tim's solution that preallocates all vectors to avoid the costly push_back. Still needs the unlists in R, so it's...

You have a point about push_back being amortized constant. In my code I do everything with Lists, which may explain why I needed to preallocate them. Unfortunately I forgot the motivation for using Lists instead of std:vector, which...

That worked, thanks Antonio On Tue, Nov 26, 2013 at 2:48 PM, Dirk Eddelbuettel <edd at debian.org> wrote: > > On 26 November 2013 at 14:26, Antonio Piccolboni wrote: > | Hi all, > | I have a list of lists, the inner...

Hi, I develop a package called rmr2 and we've run into some hard-to-track instability of late. R CMD check fails on an assertion, but if we execute the same test any other way (interactive, batch, vanilla, anything...

I wonder if (2) is possible why not have a default path. It seems to me leaving the R object broken is not the best user experience. It would also help me on the RHadoop end since I could pack...

Hi, I defined a little C++ function and sourced it with sourceCpp, tested, works great. It so happens that I develop a package to interface R and Hadoop, and I need to use the same function in the map or...