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Dear All, I would like to know if the Voung test (Voung; Econometrica, 1989) to compare two non-nested regression models has been implemented in R. Thanks in advance for your assistance, mirko [[alternative HTML version deleted]]

Dear All, I am using the function vuong of the package pscl to compare 2 non nested glm models with a numeric response. I did the following m1<-glm(y ~x ,data=xxx) m2<-glm(y ~z , data=xxx) When calling the vuong function I get the following message: > vuong(m1,m2) Error in predprob.glm(m1) : your object of class glm is unsupported by predprob.glmyour object of class lm is unsupported

On 26 September 2012 01:08, Jan Voung <jvoung at chromium.org> wrote: > - Forward references will create negative-valued ids (which end up being > written out as large 32-bit integers, as far as I could tell). Can you use an SLEB-like representation? It's probably not going to be backwards compatible, but if there isn...

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Oops, sorry hit send too early -- meant to just make a draft email. I'm still looking through, but so far I hadn't seen many of its methods being used... On Fri, Oct 26, 2012 at 4:37 PM, Jan Voung <jvoung at chromium.org> wrote: > > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20121026/506a0249/attachment.html>

Thanks for the review Rafael! Chris, did you want to take a look at the patch too? Thanks, - Jan On Wed, Oct 10, 2012 at 12:39 PM, Rafael Espíndola < rafael.espindola at gmail.com> wrote: > On 10 October 2012 15:15, Jan Voung <jvoung at chromium.org> wrote: > > Yes, I had about 133K hits for INST_PHI with a negative value, out of > 136K > > hits of any "INST_.*" with a negative valued operand. > > > > Overall there were 474K INST_PHI and 12 million "INST_.*" in my tes...

On Wed, Sep 26, 2012 at 2:07 AM, Renato Golin <rengolin at systemcall.org>wrote: > On 26 September 2012 01:08, Jan Voung <jvoung at chromium.org> wrote: > > - Forward references will create negative-valued ids (which end up being > > written out as large 32-bit integers, as far as I could tell). > > Can you use an SLEB-like representation? > > It's probably not going to be backwards...

Hi everyone, happy new year. This note is to announce that support for PC relative reloc tags for movw/movt is nearing completion (hopefully <48hrs!). This work is is from Jan Voung, David Meyer and myself. Unfortunately, to test this change, we need to patch ARM/AsmParser to address http://llvm.org/bugs/show_bug.cgi?id=8721 Locally, we have hacked up a solution to 8721, but its not ideal since VK_ARM_HI16 and VK_ARM_LO16 should apply to any MCExpr, not just MCSymbolRef like...

Yes, I had about 133K hits for INST_PHI with a negative value, out of 136K hits of any "INST_.*" with a negative valued operand. Overall there were 474K INST_PHI and 12 million "INST_.*" in my tests. - Jan On Wed, Oct 10, 2012 at 11:23 AM, Rafael Espíndola < rafael.espindola at gmail.com> wrote: > This looks good to me. > > Just one question, you found that

On 10 October 2012 15:15, Jan Voung <jvoung at chromium.org> wrote: > Yes, I had about 133K hits for INST_PHI with a negative value, out of 136K > hits of any "INST_.*" with a negative valued operand. > > Overall there were 474K INST_PHI and 12 million "INST_.*" in my tests. Cool! Thanks again...

Perhaps it could have been removed when ELFWriter was removed in r147615? http://llvm.org/viewvc/llvm-project?view=rev&revision=147615 - Jan On Fri, Oct 26, 2012 at 4:41 PM, Jan Voung <jvoung at chromium.org> wrote: > Oops, sorry hit send too early -- meant to just make a draft email. I'm > still looking through, but so far I hadn't seen many of its methods being > used... > > > On Fri, Oct 26, 2012 at 4:37 PM, Jan Voung <jvoung at chromium.o...

On Oct 10, 2012, at 5:10 PM, Jan Voung <jvoung at chromium.org> wrote: > Thanks for the review Rafael! > > Chris, did you want to take a look at the patch too? Your most recent patch looks good to me, with a minor change: +++ b/lib/Bitcode/Writer/BitcodeWriter.cpp @@ -33,6 +33,13 @@ using namespace llvm; static cl...

On 26 September 2012 22:08, Jan Voung <jvoung at chromium.org> wrote: > I think most of the instructions operands are encoded as VBR(N) > for some N number of bits, and it seems to me that VBR(8) is like ULEB? > I think that the default N is 6 bits, but I haven't tried tweaking these > parameters. It has a simila...

...hmarks is neglible, but for spec's 483.xalancbmk it is quite dramatic. Also, any pointers to documentation, or description of the algorithm used by the Select() -> SelectCode() -> SelectCodeCommon() pass would be very helpful. Sorry for the long email, and many thanks in advance! - Jan Voung -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20100514/16e1c9ea/attachment.html>

On 26 Sep 2012, at 01:08, Jan Voung wrote: > I've been looking into how to make llvm bitcode files smaller. There is one simple change that appears to shrink linked bitcode files by about 15% Whenever anyone proposes a custom compression scheme for a data format, the first question that should always be asked is how does it...

On Sep 25, 2012, at 5:08 PM, Jan Voung <jvoung at chromium.org> wrote: > Hi all, > > I've been looking into how to make llvm bitcode files smaller. There is one simple change that appears to shrink linked bitcode files by about 15%. See this spreadsheet for some rough data: > > https://docs.google.com/sprea...

Hi all, I've been looking into how to make llvm bitcode files smaller. There is one simple change that appears to shrink linked bitcode files by about 15%. See this spreadsheet for some rough data: https://docs.google.com/spreadsheet/ccc?key=0AjRrJHQc4_bddEtJdjdIek5fMDdIdFFIZldZXzdWa0E The change is in how operand ids are encoded in bitcode files. Rather than use an "absolute

Here are some recent stats of the fast vs local vs linear scan at O0 on "opt -std-compile-opts" processed bitcode files. The fast regalloc is still certainly faster at codegen than local with such bitcode files. Let me know if the link doesn't work: https://spreadsheets.google.com/a/google.com/ccc?key=0At5EJFcCBf-wdDgtd2FoZjU4bFBzcFBtT25rQkgzMEE&hl=en Misc stuff: I ran into an

On May 14, 2010, at 11:24 AM, Jan Voung wrote: > I'm sure this has been asked many times, but is there current work on decreasing the time taken by the DAG-based instruction selector, or the other phases of llc? I am just beginning to dive into LLVM, and I am interested in compile-time reductions that do not reduce code quality d...

On May 18, 2010, at 12:07 PM, Jan Voung wrote: > Here are some recent stats of the fast vs local vs linear scan at O0 on "opt -std-compile-opts" processed bitcode files. The fast regalloc is still certainly faster at codegen than local with such bitcode files. Let me know if the link doesn't work: > > https://sp...