search for: stephenson

...It is a constraint system by Su and Wagner, which is more modern, and has some advantages over older works. In particular, it is non-iterative. I found it very hard to compare it with Patterson's analysis, because there is not much description in that paper. However, there is another paper, by Stephenson, which gives a nice description of an iterative analysis. Although I have not compared it with an implementation of Stephenson's algo yet, I believe Su's technique would converge much faster. I have an explanation about our implementation here: ( http://homepages.dcc.ufmg.br/~douglas/Range...

...he behaviour is the same whether brian is running Debian or Windows, so I think it is not likely to be a problem with brian''s configuration. I am not subscribed to this list, so please Cc me on any replies. Thanks in advance for any guidance you may be able to send my way. Regards, Paul Stephenson

Hi! I'm a student who would like to participate on Google SOC for LLVM, and was thinking about what project to pick. I saw on the "Open projects" page that Value Range Propagation is not implemented and thought about doing it, based on a paper by Patterson (it's also used by GCC). But then I saw that last year someone did a Range Analysis pass that seems to do pretty much the

Full_Name: Alec Stephenson Version: 1.6.0 OS: linux Submission from: (NULL) (148.88.138.5) Appears to be a sign error in as.POSIX(lt/ct) > library("chron") The following is fine, with default origin. > tmp <- chron(1:2, origin = c(1,1,1970)) > as.POSIXlt(tmp) [1] "1970-01-02 01:00:00 GMT"...

Full_Name: alec stephenson Version: 1.6.0 OS: linux Submission from: (NULL) (148.88.138.5) The documentation for the function require is incorrect. The file library.Rd has in its arguments section \item{quietly}{a logical. If \code{TRUE}, a warning will not be printed if the package cannot be found.} which is i...

Hello, all; I get an unexpected result when trying to plot a probability histogram with R1.9.1 on windows xp: #with the following code: > x <- runif(100,0,1) > hist(x) > hist(x, freq=F) > h <- hist(x, freq=F) > summary(h) # Length Class Mode #breaks 11 -none- numeric #counts 10 -none- numeric #intensities 10 -none- numeric #density 10

...:57 AM, Renato Golin via cfe-dev < cfe-dev at lists.llvm.org> wrote: > On 1 April 2016 at 18:50, Richard Smith via cfe-dev > <cfe-dev at lists.llvm.org> wrote: > > * The name has been used by a kickstarter project, causing incalculable > > confusion[0] > > Neal Stephenson has poetic license to do pretty much anything he > wants. If he want's to use "Clang", we'll *have* to change our > front-end's name... :( > > I, for one, welcome our new steam-punk-unicorn-pony overlord. > > May the rainbow be with you, always. > > --r...

Hi all, Can I safely assume that each migration is excuted within a transaction, so that''s it''s safe to have migrations executing failing statements? Thanks, - Rowan -- Morality is usually taught by the immoral.

Hi, LLVMers, has someone implemented bitwidth analysis for LLVM? I was looking for something similar to the bitwise compiler described in "Bidwidth analysis with application to silicon compilation, by Mark Stephenson, Jonathan Babb and Saman Amarasinghe" e.g.: http://portal.acm.org/citation.cfm?id=349299.349317 all the best, Fernando

...been working on this for two months, and I am pretty confident I can implement a good range analysis. I am basing my work on a paper by Zhendong and Wagner: "A class of polynomially solvable range constraints for interval analysis without widenings". I have opted for this work, instead of Stephenson's more well known paper because I found Zhendong's easier to understand and implement. As I told you, I can already infer correct ranges on very simple loops, such as: for (int i = 0; i < 10; i++) { printf("%d\n", i); } In this case, I can find out that i is in [0, 0] befor...

Dear R-help, Please can someone explain how to put a column name on an output data.frame. ##Starting with a data.frame with 3 columns (d$Year, d$NoIndiv, d$wtd_tl) yr_ind <- split (d$NoIndiv, d$Year) yr_tl <- split (d$wtd_tl, d$Year) ann_ind <- sapply (yr_ind, sum) ann_tl <- sapply (yr_tl, sum) av_tl <- ann_tl/ann_ind d2<- data.frame (av_tl) ##This gives me a data.frame

On Mon, Jun 8, 2020 at 5:09 AM Daniel P. Berrangé <berrange@redhat.com> wrote: > > On Fri, Jun 05, 2020 at 01:27:08PM -0400, Justin Stephenson wrote: > > Hi, > > > > I recently installed a fresh install of Fedora 32 and I am having > > trouble with my virtual machine networking, I can ssh and connect into > > my guest VMs from my host, but the guest VMs cannot ping out to the > > internet. > > &gt...

So after successfully getting the test SQLite db to run from memory, I tried running some tests but found that somewhere in the schema translation from Postgres (my devel database) and SQLite Rails fails to properly set the ''id'' column, which breaks all kinds of things. Take as an example my ''users'' table. In Postgres the schema is (generated with pgAdmin III):

Hi there I have a data frame with about 65,000 rows and 8 variables. I am trying to get rid of the double entries of a factor variable "ID" so I can get a unique observation for each ID I tried: >dupl_unique.data.frame(data[ID,]) #I obtain a data frame with 21,547 >observations..so far so good, but then when I check for duplicates >d_duplicated(dupl2$ID)

Dear John and Nuno, > well, the analysis that I am working right now is > intra-procedural. It should be more general than SCEV, as it finds ranges outside the loops. Indeed, it is very similar to Stephenson's original bitwidth analysis (see Bitwidth Analysis with Application to Silicon Compilation), but it is only > forward, it does not have the backward pass. Stephenson would assume, > for instance, that when we read an array position, we are inside the > boundaries of the array, and wou...

...nd(x=u, y=1-u)^alpha exp(-sim) } which doesn't have the same structured output (for obvious reasons). Incedently, the distribution function from which these sample from is the copula F(x,y)=exp(-(u^(1/alpha)+v^(1/alpha))^alpha) where u=-log(x) and v=-log(y). Thanks in advance. Alec Stephenson tel +44 (0) 1524 593950 Department of Mathematics and Statistics fax +44 (0) 1524 592681 Lancaster University email a.stephenson at lancaster.ac.uk Lancaster LA1 4YF -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mai...

...me(t(sapply(val, function(el) c(attr(el, "df"), AIC(el, k = k))))) names(val) <- c("df", "AIC") row.names(val) <- rnm ## altered val } else { AIC(logLik(object), k = k) } } Alec Stephenson tel +44 (0) 1524 593950 Department of Mathematics and Statistics fax +44 (0) 1524 592681 Lancaster University a.stephenson@lancaster.ac.uk Lancaster LA1 4YF http://www.maths.lancs.ac.uk/~stephena/

Hi R lovers! Are there any means to define and plot a function given the equation that specifies the function? For example I'd like to plot and work with the Gumbel Distribution density defined by Lambda(x)=exp(-exp(-x)) My question may appear very simple but I haven't got an idea yet about how to do that. I could plot something with x a vector/set of value but I don't know how to

Dear LLVMers and Clangers (did I say that right?), I received the following email from Daniel Stephenson at Apple and thought it would be of interest to those in the LLVM and Clang communities. Inquiries should be directed to Mr. Stephenson (dstephenson at apple.com). -- John T. Apple Cupertino, CA Software Engineer, Front-end Compiler Development Apple is building a new front-end for C, Objectiv...

To play with RJS I just made a "rake freeze edge". But this copies only the libs into vendor/rails and any attempt of "rake update_javascripts" fails. But all the he required javascripts are there, at: BASEPATH/vendor/rails/actionpack/lib/action_view/helpers/javascripts/ Except of prototype, they seem to have no version number, so I am asking whether I should take those