similar to: Value between which elements of a vector?

Dear R users, Probably, this is quite a simpe question, but I do not find the proper way to obtain want I need. To explain the problem, I constructed a simple example. Suppose I have the following function: try1<-function(x){ y<-x[1:2] z<-x[3:4] y[1]*(z[1]+z[2])+y[2]*(z[1]+z[2]) } This function will be part of a for loop. This is what I like to obtain for every k: if k=2

> To verify everything is ok with your metadata go to > http://$youricecastserverip:$yourport/admin/stats.xsl > or if you like plain XML > http://$youricecastserverip:$yourport/admin/stats.xml Stream name, genre, description and url are NOT present here also! I've got the feeling that we're isolating the problem here, so that's fine... but: if the stream name doesn't

Hi all, I was wondering if there is a function kind of similar that splits a dataframe, applies a function to each row and returns in a data frame. I know ddply but this one isn?t useful in this situation. I have a dataframe with values for each day (rows) for different objects (columns). I have values for several years. Now, I want to do calculations on only the data of that year. With the

Hi guys, I've got the following set up: - Linux SuSE 8.2 - Running: Icecast2 - Source Client: Ices0.3 - Stream Client: Winamp 5.0 in Windows XP The following is happening: - I've got Ices0.3 streaming MP3's with correct ID3-tags to the Icecast-server - Suppose the stream name is "Ovide's Radio" - In the status.xsl page of Icecast2, I only see info about: mountpount,

Am I trying to perform multiple linear regressions on each 'VARIABLE2'. I figured out that there are different ways, using the following code: (data is given at the end of this message) reg <- lapply(split(TRY, VARIABLE2), function(X){lm(X2 ~ X3, data=X)}) lapply(reg, summary) Which produces the following: $`1` Call: lm(formula = X2 ~ X3, data = X) Residuals: Min

Hi I am looking at open projects that LLVM want to implement and it seems to be a suggestion to write an LLVM IR level debugger. Is there any existing LLVM projects out there that already does such a thing? If not, I would like to try implementing one myself. By debugger, I think it means something like gdb, where you can insert breakpoints, run code and observe layout of registers and memory at

The bitcode is only a representation of the IR, which is in SSA form. And SSA form assumes an infinite amount of registers, which is not offered by x86. When bitcode gets assembled/compiled to machine language, it breaks down the SSA form into non-SSA format. Personally I don't know how to use bitcode language to achieve what you want to do. The closest thing I can think of is the llvm-MC

Program counter - EIP, RIP for x86/64. I need to obtain it and pass it as an argument to the function that calculates an ordinal from it. I think that there must be some way to use the bitcode language to place byte values at a designated offset. Or use the command line to specify the section and offset for the data. On Sun, Apr 1, 2018 at 6:00 PM, Brenda So <sogun3 at gmail.com> wrote:

If you can write what you want to output in C with asm statements, clang can show you what the IR should look like. On Mon, Apr 2, 2018 at 7:35 AM, Kenneth Adam Miller via llvm-dev < llvm-dev at lists.llvm.org> wrote: > Program counter - EIP, RIP for x86/64. I need to obtain it and pass it as > an argument to the function that calculates an ordinal from it. > > I think that

Thank you so much! What about discovering the instruction pointer value? Also, does anybody know how to embed an artifact as a resource in a binary? I'd like to have two text sections, and have one copied in from another binary. On Sun, Apr 1, 2018 at 2:15 PM, Brenda So <sogun3 at gmail.com> wrote: > Hi, > > You can write it as if you are writing an optimization pass: >

You can attach debug info to the Llvm module about LLVM IR, at which point one can throw the executable into any debugger and get llvm level debugging. I've started a patch to revive this feature (DebugIR pass). I've been sidetracked the past month, but I'll come back to it soon :) https://reviews.llvm.org/D40778 Cheers, Siddharth On Thu 4 Jan, 2018, 09:23 Brenda So via llvm-dev,

Hi Kenneth, Can you elaborate what you mean by instruction pointer value? Like the actual instruction with opcode and operands? With the sample code that I showed you, the instrucrtion pointer in the innermost for loop will have access to the following functions: http://llvm.org/doxygen/classllvm_1_1Instruction.html Alternatively, you can use the dump() operation to dump the instructions out.

Is there a way to permit ssh sessions while denying sftp with openssh 3.8? In openssh 4.4+ this is possible using the Match directive with Force Command but I don't know how to configure this in older versions. Thanks in advance for any guidance. Brenda

Hi all, I have a question concerning block address class in LLVM. I am currently working on a project where I need to obtain and manipulate basic block virtual addresses. I was searching the web and found the llvm::BlockAddress class (http://llvm.org/doxygen/classllvm_1_1BlockAddress.html). With this class I was able to obtain a printout like this: i8* blockaddress(@func_name, %bb_label) How do

interesting ... just curious, why did they delete "-debug-ir" to begin with ? Also, it's extremely interesting that gdb and lldb can be used to debug LLVM IR. How does your code work (on a high level)? A high level explanation will help me understand what you've done better. >From first glance, my idea is slight different because your code interfaces with gdb and lldb while

On Mon, Apr 16, 2018 at 04:14:03PM -0400, Brenda So via llvm-dev wrote: > Hi all, > > I have a question concerning block address class in LLVM. I am currently > working on a project where I need to obtain and manipulate basic block virtual > addresses. I was searching the web and found the llvm::BlockAddress class ( > http://llvm.org/doxygen/classllvm_1_1BlockAddress.html). With

Hi all, I am a fourth year EE bachelors student who is very interested in compilers. I have taken the only compilers course offered in my school and did an independent study with my CS professor. Although I'll begin to work in a couple of months, I definitely want to pursue my interest in compiler design and optimization as a PhD in the future. I am very interested in the z3 SMT solver

Hi there.I''m Brenda from the Australia,I wanna work on a project relating to VOIP QoS.I wanna evaluate IP over ATM against IP over Ethernet on the following parameters relating to voice and video traffic; bandwidth consumption packet loss packet delay(latency) jitter traffic thoroughput Is this project feasible?Can I use NS to simulate the models?I hope you reply.Thanks. Best regards.

Hi, You can write it as if you are writing an optimization pass: http://llvm.org/docs/ProgrammersManual.html It sounds like your highest level is a module, hence you should write a module pass. There is example code on LLVM Programmer's Manual on how to do a function pass: Function* targetFunc = ...; class OurFunctionPass : public FunctionPass { public: OurFunctionPass():

Hi Yuri, When you say code analysis, do you mean checking from source code itself, the intermediate representation, the assembly instructions or the binary? Brenda On Mon, Jan 1, 2018 at 1:26 AM, Yuri via llvm-dev <llvm-dev at lists.llvm.org> wrote: > There is llvmlite http://llvmlite.readthedocs.io/en/latest/ , but it > doesn't seem to support reading individual instructions,