search for: frontier

Dear current (and future) users of the "frontier" package, We are approaching the first stable version (1.0) of the frontier package, which provides tools for microeconomic Stochastic Frontier Analysis (SFA). I have uploaded a kind of beta release (version 0.99) of this package to CRAN. The most important differences to version 0.9 affec...

Dear current (and future) users of the "frontier" package, We are approaching the first stable version (1.0) of the frontier package, which provides tools for microeconomic Stochastic Frontier Analysis (SFA). I have uploaded a kind of beta release (version 0.99) of this package to CRAN. The most important differences to version 0.9 affec...

...that it needs internally.* Will my code fail to compile if the required specialization of DenseMapInfo is not present? I wonder all these things because I've tripped across a problem where a method hangs repeatably, and I don't see the problem. typedef SmallVector<BasicBlock *, 4> Frontier; DenseMap<BasicBlock *, Frontier> frontier(blocks*3/2); BasicBlock *Xblock = ... errs() << "start\n"; Frontier &f = frontier[Xblock]; // Xblock is not yet represented in frontier errs() << "finish\n"; It compiles fine (as part of a function-level pas...

Hi! A few weeks ago, I have uploaded a new R package "frontier" for Stochastic Frontier Analysis (SFA) [1] to CRAN [2]. It includes the FORTRAN code of Tim Coelli's [3] software "Frontier 4.1" [4]. Hence, the R package "frontier" should have the same capabilities as "Frontier 4.1", i.e. Maximum Likelihood Estimation o...

Hi! A few weeks ago, I have uploaded a new R package "frontier" for Stochastic Frontier Analysis (SFA) [1] to CRAN [2]. It includes the FORTRAN code of Tim Coelli's [3] software "Frontier 4.1" [4]. Hence, the R package "frontier" should have the same capabilities as "Frontier 4.1", i.e. Maximum Likelihood Estimation o...

Hi, I found that LLVM 3.1 says Dominance frontier is deprecated. Can anyone please tell me, if there is any replacement for Dominance frontier & Postdominance frontier in LLVM? What are the options if we need to use them? Thanks, Swarup. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/...

Hi, I am trying to find out the scale efficiency and optimal scale of banks by stochastic frontier analysis given the panel data of bank. I am free to choose any model of stochastic frontier analysis. The only approach I know to work with R is to estimate a translog production function by sfa or other related function in frontier package, and then use the Ray 1998 formula to find the scale e...

...Will my code fail to compile if the required specialization of > DenseMapInfo is not present? > > I wonder all these things because I've tripped across a problem where a > method hangs repeatably, and I don't see the problem. > > typedef SmallVector<BasicBlock *, 4> Frontier; > DenseMap<BasicBlock *, Frontier> frontier(blocks*3/2); > > BasicBlock *Xblock = ... > > errs() << "start\n"; > Frontier &f = frontier[Xblock]; // Xblock is not yet represented in > frontier > errs() << "finish\n"; > > &gt...

In the literature (see below for a reference), when a dominance frontier is computed, it is computed from a CFG that contains a dummy entry node and dummy exit node. Further, those dummy nodes are potential members of the (post-)dominance frontier for a given basic block. In LLVM, I could not figure out a way to determine if the dummy entry node is a member of th...

I need to estimate maximum tree crown radius and am looking for a package to prepare stochastic frontier models in R. I have not found any package references on Nabble R help, google, or R help. Any tips on a package for this? With regards, Aaron Trowbridge Researcher BV Research Centre Smithers B.C. -- View this message in context: http://www.nabble.com/package-for-stochastic-frontier-models...

On Thu, 9 Nov 2006, Ryan M. Lefever wrote: Sorry I never responded to this: > In the literature (see below for a reference), when a dominance frontier > is computed, it is computed from a CFG that contains a dummy entry node > and dummy exit node. Further, those dummy nodes are potential members > of the (post-)dominance frontier for a given basic block. In LLVM, I > could not figure out a way to determine if the dummy entry node is...

Hello. I'm using Samba 3.0.25a on FreeBSD-6.0. Samba is configured to be a PDC. Samba can't find its hostname via nmblookup: $ nmblookup -B 192.168.1.255 frontier querying frontier on 192.168.1.255 name_query failed to find name frontier If I query Samba via unicast, it answers OK: $ nmblookup -U frontier frontier querying frontier on 192.168.1.31 192.168.1.31 frontier<00> Also, Samba cannot find domain's master, but I suspect it can't become...

Hello everybody, Anyone familiar with the package frontier? I have some general questions on how to approach the model design. Thanks in advance Giovanna Giovanna Ottaviani Aalmo Stipendiat/Ph.D. Student ------------------------------------------- Norsk institutt for skog og landskap Pb 115, NO-1431 Ås T (+47) 64 94 9094 M(+47) 980 30 422 F(+47) 64 94 90...

Dear all I am happy to announce that version 1.0 of the "frontier" package is available on CRAN. The R package "frontier" provides tools for analysing efficiency and productivity using the "stochastic frontier" approach. This R package is based on Tim Coelli's DOS software "FRONTIER 4.1" and has been available on CRAN for al...

Hi Henrique, I have tried using -mergereturn and inserting a free into the predecessors of dominance frontier of malloc block and it caused double free. It is possible for multiple free's to be inserted on the path from malloc to an exit. For example, in the following CFG: BB10 (malloc) / \ BB11 BB12 ... / \ / \ ......

Try breaking the critical edges (-break-crit-edges). This way, a new block will be created between BB13 and BB11 (call this BB11.break) and BB15 and BB12 (call this BB12.break). The predecessors of the dominance frontier will, thus, be BB11.break, BB12.break, and BB14. When we enter through a block with a call to malloc(), we will end up in one of the blocks in the dominance frontier (kind of). These blocks must have multiple predecessors, else it would not be in the dominance frontier. If a predecessors of these...

...> setTargetReturn(Spec) = mean(colMeans(PData)) Error in setTargetReturn(Spec) = mean(colMeans(PData)) : object 'Spec' not found > Constraints = "LongOnly" > efficientPortfolio(PData, Spec, Constraints) Error: could not find function "efficientPortfolio" > Frontier = portfolioFrontier(PData) Error: could not find function "portfolioFrontier" > frontierPlot(Frontier, col = c("orange", "orange"), pch = 19) Error: could not find function "frontierPlot" > minvarport = minvariancePoints(Frontier, pch = 19, col = "...

Hi Guys, I saw in the API that DominanceFrontier has been deprecated. Is this for real? I have read the computational issues but shouldn't that be left to the users of llvm? My concern is I am writing a Control Dependence module that uses Dominance-Frontier information. Getting rid of Dominance Frontiers will put me in a tight spot. George -...

I just finished upgrading our LLVM to 2.4 and I immediately ran into a problem with dominance frontier calculation: llvm/lib/VMCore/PassManager.cpp:714: void llvm::PMDataManager::verifyDomInfo(llvm::Pass&, llvm::Function&): Assertion `0 && "Invalid dominator info"' failed. Strangely enough, the Pass running when the assert triggers is Dominance Frontier Constructio...

Dear all, I want to program my own models about Stochastic Frontier Analysis and Linear programming (Data Envelopment Analysis). In this context, is there anyone that may help me with some simple tutorials and scripts about these issues? Thanks a lot. -- Marcus Vinicius Pereira de Souza, Prof. [[alternative HTML version deleted]]