similar to: create namespace without creating a package?

Hi, all, Does R have a "const object" concept like which is in C++ language? I want to set some data frames as constant to avoid being modified unintentionally. Thanks! xiagao1982 2011-03-15 [[alternative HTML version deleted]]

Hi all, I create some objects in local(), and want to pass them to GlobalEnv. How can I do this? Thanks! xiagao1982 2011-05-02 [[alternative HTML version deleted]]

Hi all, I wonder if I can create indexes for columns in a data frame to speed up data selection by matching column values, just like indexes for large tables in a relational database? Thank you! xiagao1982 2011-05-19 [[alternative HTML version deleted]]

Hi all, I have written some functionalities in C# and want to call them in R, maybe from another machine. I have found the following methods: 1. wrapper the C# code as Web Service: I noticed that there is a package named SSOAP, but it seems not yet finished and might be not fully compatible with the WDSL format used in Microsoft .NET Web service. 2. wrapper as DCOM Server: there are packages

I would like to program a basic OGG decoder that takes in an array of bytes (unsigned char *) and return an array of floats. Presumably I could then pass these floats to be read as PCM data which can be immediately interpreted as audio (by Unity3D). The starting point would be the header of an icecast stream (I know I'm not in the icecast mailing-list, but that is only the basic starting

I need to write a C# program to create and display Cusum chart from any of the packages, spc, qcc or strucchange. Issues: 1-The data resides in a MS SQL Database. The C# program will handle obtaining the data for the requisite types of samples. Assistance needed on: 1-How can I call the cusum capabilities of any of the above packages and pass the data to the cusum function and plot? 2-How

The code below works as expected but: Using the proto package, is this the best way to 1) make a parameter persist if the parameter is passed in with a value, 2) allow for calling the bias() function without a parameter assignment, 3) have the x2 value initialize as 5? Thanks for your feedback. Giving the proto package a test beat and establishing some templates for myself. > oo <-

I''m curious -- how many of us came to Rails from other branches of the OO world -- Java, C# -- and how many of us came from the design or non-OO scripting worlds? Reason I ask is that I''m finding Rails a blast and very productive, but I think one reason is that I already cut my teeth on MVC and ORM during two years of writing apps with J2EE/Struts/Hibernate. And in Javaland, it

When I did install.packages("sqldf") on Windows and Mac OSX, it installed fine. However, when I did it on my Debian Squeeze box under R 2.14.0, it failed. I discovered that three of the dependent packages, chron, proto, and gsubfn, do not include a NAMESPACE file in their distribution tar.gz files. I contacted the developer, who told me that, for packages without a NAMESPACE file, R 2.14

Hola a todos. Se me está plantendo la posibilidad de empezar a aprender C# para hacer algunos programillas (nada grande). El tema es que el otro día en un mail de esta misma lista alguien (lo siento, no recuerdo quien) puso un link a un post en el que se hablaba de la integración entre R y C#. Por supuesto para llegar a poder hacer esto primero tengo que entender las bases de .NET y C#, pero me

Hi everybody, I am fresh for speex and vs.net c#,and I want to use speex in a existed project written by c# language,does anybody done this before?because I do not know how to use c in c#,I worked under linux environment for years,never touched vc.net.Maybe compile the source code into dll file and use them?I heard about the wrapper,what does this mean, Regards Chris -------------- next part

We''ve all seen the productivity benefits of RoR. It would be worthwhile to figure out where they come from. For me, I''d say the following: 1. The number one benefit isn''t from Rails per se, but from Ruby, or any other dynamic OO language (like Python). They avoid the weaknesses of loosely typed, procedural languages like Perl & PHP, but have the swiftness

Hello, As part of a MSIL (i.e. C#) to LLVM frontend I am currently working on ( https://github.com/xen2/SharpLang ), I would need some help/hint about how to properly design "PInvoke callbacks". Through "PInvoke" mechanism .NET allows you to call C functions, i.e.: C#: [DllImport("libc.so")] extern void mempcy(void* dest, void* src, int size); // declaration of C

I'm still getting used to R's scoping. I've run into the following situation value=0 thefunction <- function() print( value ) somefunction <- function() { value=99; thefunction() } somefunction() now, I understand that somefunction() returns 0 because thefunction() was defined with value=0 in its parent envrionment, it dosent look at all in the environment of somefunction. My

For reasons not relavent, I would like to create an n-tier app as follows. Data Acess layer => NHibernate Business layer => C# Presentation layer => RoR All of which might be spread across multiple machines in each layer. I am looking for the best way to allow RoR to talk to my business layer, dll''s etc hosted on another box. The RoR box might be *nix \ apache or windows

I tried that approach a while ago and failed miserably. Marshalling the structs of structs in the flac lib turned out to be a nightmare (I don't pretend to be an expert, mind you...). I eventually switched to writing my own C# lib from scratch. Work is still under progress. It's no rocket science, I do this a G-job. It has definite limitations (no documentation, decodes only 16-bit files,

Hello team of R, We have a question about the interactivity of R in Windows, We are implementing a wrapper in C# for displaying graphics generated by R functions. The application in C# communicates with R by standard input and standard output. (when it is written "interactive()", the response is "FALSE") The problem we have is when writing in the standard input

Good afternoon everybody, I am sorry, this question might look trivial to some of you, but I read quite a lot of stuff about package creation and I would like a bit of you advices. I would like to develop a core library which I will be using both from R and from C#. I read that it was possible to import DLL to R. The thing is, I am not sure that the DLL created with C# will be compatible. I

Dear Olly, I am very excited to contribute in open source community through the platform of Google Summer of Code 2011. I have visited the ideas of ?Xapian? at http://trac.xapian.org/wiki/GSoCProjectIdeas for GSoC 2011. I am interested in working on ?Improve Existing Bindings?. The reason for my interest is that I have previously worked on .NET related projects both in VB and C#. I also have

I am interested in starting a project to port stable versions of OpenSSH to C#, compilable as a stable .Net Library. I was wondering what the list's feelings would be on such a port, if any one else would be interested in such a port, and for any suggestions on raising interest from others to perform such a port. I have nothing against Java and would welcome a similar effort from that arena.