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I have a Master's student working on a project which involves estimating parameters of a certain model via maximum likelihood, with the maximization being done via optim(). A phenomenon has occurred which I am at a loss to explain. If we use certain pairs of starting values for optim(), it simply returns those values as the ``optimal'' values, although they are definitely not

Dear R users, I am running the following code below, the gem751be.rpkm is a dataframe with dim of 751 samples by 35164 variables, 73 phenotypic variables in the furst to 73rd column and 35091 genomic variables or genes in the 74th to 35164th columns. What I need to do is to calculate the residuals for each gene using the simple linear regression model of genelist[i] ~ purity2; The following

Dear List, I stepped into a strange effect which I can't explain to myself (probably due to lack of knowledge on R internals). I have four vectors a,b,c and z of size 10000 each. With these vectors I call .Call("hyp2f1forrey", a, b, b, z, PACKAGE = "hyp2f1") to access SEXP hyp2f1forrey(SEXP a, SEXP b, SEXP c, SEXP x) { int i,n; double *xa, *xb, *xc, *xx,

Hi there, I have just found that the ``attach'' function can get you into trouble when called many times. For example, you have a simulation routine called ``f()'', in which you used ``attach'' and no corresponding ``detach''. Then you call this function many times. You will find that the system performance get slower and slower, because you are making the R

On May 28, 2009, at 6:03 PM, Jonathan Ragan-Kelley wrote: > In the current trunk, System/Atomic.[h,cpp] define void > llvm::sys::MemoryFence(). This conflicts with the MemoryFence macro in > <windows.h> and (since it's a preprocessor macro, and not a scoped > function definition) causes the sys::MemoryFence definition on > Atomic.cpp:23 to explode, as it's

Yes, indeed. On May 28, 10:41 pm, Owen Anderson <resis... at mac.com> wrote: > > Wait, it defines MemoryFence() AND MemoryBarrier()?? > > Sheesh, they had to take all the reasonable names.  :-/

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On Apr 17, 7:01 pm, Owen Anderson <resis... at mac.com> wrote: > Gabor, > > Have you updated llvm2cpp to generate calls to the appropriate new Yes. These are caught by my conversion scripts. > constructors? Also, could you check the code in the tutorials to make > sure it matches the new API? Good point, will do. Th...

Hey Duncan, hey everybody else, I just stumbled upon a problem in the latest llvm-gcc trunk which is related to my previous problem with the 64bit ABI and structs: Given the following code: struct float3 { float x, y, z; }; extern "C" void __attribute__((noinline)) test(float3 a, float3* res) { res->y = a.y; } int main(void) { float3 a; float3 res; test(a,

On Apr 18, 5:51 pm, heisenbug <ggr... at gmail.com> wrote: > On Apr 17, 7:01 pm, Owen Anderson <resis... at mac.com> wrote: > > > Gabor, > > > Have you updated llvm2cpp to generate calls to the appropriate new > > Yes. These are caught by my conversion scripts. > > > constructors?  Also, could you check the code in the tutorials to make > > sure it matches...

Hi Ralf, > llvm-gcc -c -emit-llvm -O3 produces this: > > %struct.float3 = type { float, float, float } > define void @test(double %a.0, float %a.1, %struct.float3* nocapture > %res) nounwind noinline { > entry: > %tmp8 = bitcast double %a.0 to i64 ; <i64> [#uses=1] > %tmp9 = zext i64 %tmp8 to i96 ; <i96> [#uses=1] >

Hi Ralf, > I do not understand why this behaviour is required. What is the problem > in having a function receive a single struct-parameter with three floats > compared to two scalar parameters? > > source-code (C++): > struct Test3Float { float a, b, c; }; > void test(Test3Float param, Test3Float* result) { ... } if you compile this with GCC, you will see that it too

Uh, sorry, did not pay attention where I was replying ;) Hey Duncan, I do not understand why this behaviour is required. What is the problem in having a function receive a single struct-parameter with three floats compared to two scalar parameters? source-code (C++): struct Test3Float { float a, b, c; }; void test(Test3Float param, Test3Float* result) { ... } bitcode:

On Jun 1, 2009, at 11:17 PM, Jonathan Ragan-Kelley wrote: > Yes, indeed. Are they macros or functions? If macros, why not just #undef them at the top of Atomics.h? -Chris > > > On May 28, 10:41 pm, Owen Anderson <resis... at mac.com> wrote: >> >> Wait, it defines MemoryFence() AND MemoryBarrier()?? >> >> Sheesh, they had to take all the reasonable names. :-/ > > _______________________________________________ > LLVM Developers mailing list > LLVMdev at cs.uiuc.edu h...

Gabor, Have you updated llvm2cpp to generate calls to the appropriate new constructors? Also, could you check the code in the tutorials to make sure it matches the new API? --Owen On Apr 15, 2008, at 5:32 PM, Gabor Greif wrote: > Hi All, > > here comes the patch for the second wave of Use class size reduction. > > I have included all the machinery that is needed, and it is

Is this actually the case? I can't find it documented anywhere on MSDN or the rest of the internet. --Owen On Jun 1, 2009, at 11:17 PM, Jonathan Ragan-Kelley wrote: > Yes, indeed. > > On May 28, 10:41 pm, Owen Anderson <resis... at mac.com> wrote: >> >> Wait, it defines MemoryFence() AND MemoryBarrier()?? >> >> Sheesh, they had to take all the reasonable names. :-/ > > _______________________________________________ > LLVM Developers mailing list > LLVMdev at cs.uiuc.edu h...

Dear R developers: I am a PHD candidate student in the school of public health of Peking University and my major is genetic epidemiology. I am learning the FAM-MDR algorithm, which is used to detect the gene-gene and gene-environment interactions in the data of pedigree. The codes were written by Tom Cattaert of the University of Liege. The algorithms and the sample datasets are available at

...dio build. The trivial fix is to #undef MemoryFence immediately after including <windows.h>, since it's clearly assumed not to exist. A deeper and safer fix might consider avoiding a name conflict with a core system macro on a widely used platform. On May 17, 1:20 pm, Owen Anderson <resis... at mac.com> wrote: > On May 17, 2009, at 12:32 PM, Chris Lattner wrote: > > > Owen, I would really rather that you didn't take this path.  Threading > > support in LLVM should always be optional: it should be possible to > > use LLVM on systems where we don't h...

I've "inherited" an old Lexmark Z11 and would like to plug it in to my CentOS 4 box as a second printer. I shut down, hooked it up to the parallel port, rebooted, and hwbrowser recognizes it on /dev/lp0, so I ran through setting it up as a queue with printconf-gui. However, printing the test page fails because the renderer "lz11.foomatic" is not found (details below for

On May 17, 2009, at 12:32 PM, Chris Lattner wrote: > Owen, I would really rather that you didn't take this path. Threading > support in LLVM should always be optional: it should be possible to > use LLVM on systems where we don't have support for threading > operations. Indeed, some systems don't support threads! I'm not trying to make it required. I had provided