search for: leverage

Hi there, I hope I can get advice regarding the calculation of leverage values or studentized residual values of a non-linear regression model. It seems like rstudent() does not work on a nls object. Many thanks in advance! Best regards, Xingli

I propose the following enhancements and changes to plot.lm(), the most important of which is the addition of a Residuals vs Leverage plot. (1) A residual versus leverage plot has been added, available by specifying which = 5, and not included as one of the default plots. Contours of Cook's distance are included, by default at values of 0.5 and 1.0. The labeled points, if any, are those with the largest Cook's distance...

Hi Can anyone help with the technique of obtaining leverages from a conditional logistic regression model? The code lm.influence does not seem to work for this data. Thanks Jane Murray

I could not find the answer to this in a few Google searches and thought I would ask. So when are prepared statements best leveraged in ActiveRecord''s interface? I never really noticed before, but simple condition hashes or scopes do not pass down the binds so that prepared statements are leveraged. So a `Car.find(1)` would but things like `Car.where(:id => 1).first` do not. Is it a WIP to to make this happen or ble...

Hi friends, How to detect outliers and high leverage points for GLM ? Could I use plot(model) (i) "Residuals vs Fitted" graph to detect the outliers ? (ii) "Residuals vs Leverage" graph to detect the high leverage points ? And then remove those points from the data and re-run the model ? [[alternative HTML version deleted]]

...rred. Many similar projects adopts a source-to-source methodology, e.g., Berkeley UPC(using Open64), Titanium, and Rice University's Co-array Fortran. They output C code with calls to the runtime. I think there are at least three reasons: 1) using C as the output, it gets more portability. 2) leverage the front ends of existing compilers. 3) leverage optimizations in existing compilers. I wonder if LLVM is suitable for this kind of work. Can LLVM experienced users give me some hints on this topic? Thanks in advance. Junchao Zhang -------------- next part -------------- An HTML attachment was...

Hi, Does anyone have any links to, or info on, how best to leverage the power of a dynamic language. That is coming across from Java to Ruby I''m now pondering what would be the typical scenarios where I could actually call upon the power of a dynamic language. This info could be in the form of best practice for dynamic language usage, or dynamic lan...

Hi I am wanting to fit some multinomial logit models (multinom command in package nnet) Is it possible to do any model checking techniques on these models e.g. residual, leverage etc. I cannot seem to find any commands that will allow me to do this. Many thanks ---------------------- L.E.Gross L.E.Gross at maths.hull.ac.uk

...t 6:19 PM, Bob Frankel <bios.bob.frankel at gmail.com> wrote: > i'm looking into using llvm with TI's MSP430 Ah, you're in luck then: an MSP430 backend was checked in to SVN today :) I don't think it's mature enough for general use yet, though. > is there a way to leverage these (non-gcc) intrinsics in the llvm gcc-based > frontend -- perhaps flagging their use in such a way that they effectively > "pass through" the optimizer and are emitted "as is" in the generated C > code?   in some respects, you can think of this usage as not unlike...

Hi, I just want to know how to get leverage values in VGLM(Adjacent category logit model, *acat()*) model [[alternative HTML version deleted]]

Dear colleagues, hi. I am using the function gls in R-package nlme and I want to compute either the leverage values or the studentized residuals. Can any body tell me how can do that? With regards ___________________________________________________________ 围蟻畏蟽喂渭慰蟺慰喂蔚委蟍[elided Yahoo spam]] 螔伪蟻蔚胃萎魏伪蟿蔚 蟿伪 蔚谓慰蠂位畏蟿喂魏维 渭畏 未喂伪胃苇蟿蔚喂 蟿畏谓 魏伪位蠉蟿蔚蟻畏 未蠀谓伪蟿萎 蟺蟻慰蟽蟿伪蟽委伪 魏伪蟿维 蟿蠅谓 蔚谓慰蠂位畏蟿喂魏蠋谓 渭畏谓蠀渭维蟿蠅谓 http://...

...out, the TI C compiler supports a number of (processor-specific) intrinsics that expose much of the underlying CPU architecture directly to the C programmer -- registers, pseudo-functions for enabling/disabling interrupts and reading/writing status bits, etc.<br> <br> is there a way to leverage these (non-gcc) intrinsics in the llvm gcc-based frontend -- perhaps flagging their use in such a way that they effectively "pass through" the optimizer and are emitted "as is" in the generated C code? in some respects, you can think of this usage as not unlike dropping inline...

...and constraints. Unfortunately I am not able to set the following type of constraints. I have a timeSeries object with returns data for roughly 1.5k assets for 261 subperiods (workingdays) and want to compute the global minimum variance portfolio, considering following constraints: - Leverage = 1 (fully invested) - the lower / upper weights constraints (can be done by box constraints) for individual assets are e.g. +0,01 / +0,04 - and the problematic part: the minimum weights level for each asset is +0,01 OR zero (in order to control outcome portfolio size)...

On 9/13/11 9:22 AM, Michael Clagett wrote: > Oooohhh! That's interesting. Does the optimizer just work around > these inline fragments? Is there documentation for this facility? CC'ing the mailing list. The inline assembly feature is described in the LLVM Language Reference Manual (http://llvm.org/docs/LangRef.html). I'm not really familiar with what the LLVM optimizers

...True) Unrelated but in a similar situation is the -fPIC flag. The POSITION_INDEPENDENT_CODE target proeprty is available, which can be initialized toa default value with: set(CMAKE_POSITION_INDEPENDENT_CODE True) What are peoples thoughts about reducing HandleLLVMOptions.cmake to factor out and leverage options that CMake already knows about and knows how to apply? I wanted to put a bit of time into this but didn't want to spin my wheels if there were major objections to idea. ---------- Chuck Atkins Staff R&D Engineer, Scientific Computing Kitware, Inc. -------------- next part --------...

...>> ___ may change before release ___ and the header is plot.lm <- function (x, which = c(1:3, 5), caption = c("Residuals vs Fitted", "Normal Q-Q", "Scale-Location", "Cook's distance", "Residuals vs Leverage", "Cook's distance vs Leverage"), ......... ) {..............} So we now have 6 possible plots, where 1,2,3 and 5 are the defaults (and 1,2,3,4 where the old defaults). For the influential points and combination of 'influential' and 'outlier' there...

Hello I am having problems indexing a subset dataframe, which was created as: > waspsNoGV<-subset(wasps,site!="GV") Fitting a linear model revealed some data points which had high leverage, so I attempted to redo the regression without these data points: >wasps.lm<-lm(r~Nt,data=waspsNoGV[-c(61,69,142),]) which resulted in a "subscript out of bounds" error. I'm pretty sure the problem is that the data points identified in the regression as having high leverage wer...

Dear LLVM developers, Here is a quick message announcing yet another academic publication leveraging on LLVM: @INPROCEEDINGS{ieeespro2015-JunodRWM, author={Pascal Junod and Julien Rinaldini and Johan Wehrli and Julie Michielin}, booktitle={Proceedings of the {IEEE/ACM} 1st International Workshop on Software Protection, {SPRO'15}, Firenze, Italy, May 19th, 2015}, editor = {Brecht

...t;pre wrap=""><!----> Ah, you're in luck then: an MSP430 backend was checked in to SVN today :) I don't think it's mature enough for general use yet, though. </pre> <blockquote type="cite"> <pre wrap="">is there a way to leverage these (non-gcc) intrinsics in the llvm gcc-based frontend -- perhaps flagging their use in such a way that they effectively "pass through" the optimizer and are emitted "as is" in the generated C code? in some respects, you can think of this usage as not unlike dropping inline...

Hello all, TL;DR; if you used FileCheck --check-prefixes and you missed (misspelled, for instance) one of the prefixes in your test, FileCheck silently ignores that and the test passes. 1579 tests have this property. *The details* *=========* Please refer to https://reviews.llvm.org/D90281 and the discussion there for more details (make sure you open "older changes" for full context)