search for: understand

is there a way that, our application can understand wheteher the session id sent from the browser is forged or created by rails? I understand that if the attacker guesses session id, theres nothing we can do about it; but can we understand if he/she is trying to guess by creating random session ids. _______________________________________________...

Hi, I'm developing an experiment with logistic regression. I've come across the lrm function in the Design library. While I understand and can use the basic functionality, there are a ton of options that go beyond my knowledge. I've carefully read the help page for lrm, but don't understand many of the arguments and optional return values. (penalty, penalty.matrix, strata.penalty, var.penalty, weights) Additionally, th...

I think he might be concerned with audio quality, and doesn't quite understand what "lossless" really means! On Thu, 2007-07-12 at 07:12 -0700, Mark Rudholm wrote: > Rick wrote: > > hmm, let me ask this question, another way... > > which setting offer the least compression ?. > > Not using it at all. > > But why would you want that? Wh...

Hi all, I would greatly appreciate some help understanding how R references arrays, matrices, lists, and objects using [[]] and []. I have read the R guides and several tutorials but I am not the fastest kid on the block so I am still having difficulty understanding this. For examples the following code produces a 5 element list of 2X5 random numb...

I am trying to understand the function acf stats:::acf shows me the function I am having trouble understanding the usage "$acf" in the following acf <- array(.C(R_acf, as.double(x), as.integer(sampleT), as.integer(nser), as.integer(lag.max), as.integer(type == "correlation")...

Dear All, I'm currently working on a project with the purpose of remotely executing R code, which requires me to have to work with the code of R itself. I've searched the Internet for good information that will help me understand how R is implemented but what I've got so far isn't detailed enough. I've looked specifically at CRAN's manuals on the official website but they only address this issue briefly. I've also looked at other contents online but so far nothing has turned up that has the level of...

Maybe this should apply to Ruby forums directly, but I''ll try here. I understand the concept of classes and subclasses thanks to the excellent "Programming Ruby - The Pragmatic Programmer''s Guide". However, I don''t understand what :: signify in terms of inheritance, parent and child in e.g. ActionController::Base -- Posted via http://www.ruby-f...

Hi friendly LLVM Devs, I'm trying to understand the technical details of tail call optimization, but unfortunately I hit some issues that I couldn't figure out myself. So I tried the following two really simple functions: > extern void g(int*); > void f1() { > int x; > g(&x); > } > void f2(int* x) { > g(x)...

Dear All, I'm currently working on a project with the purpose of remotely executing R code, which requires me to have to work with the code of R itself. I've searched the Internet for good information that will help me understand how R is implemented but what I've got so far isn't detailed enough. I've looked specifically at CRAN's manuals on the official website but they only address this issue briefly. I've also looked at other contents online but so far nothing has turned up that has the level of deta...

Rick, Mark asked "why" you want the least amount of compression. I think we still do not understand your goals. If you can give us a hint at what you're trying to accomplish in your search for the least amount of compression, that might help us find the right answer. Brian Willoughby Sound Consulting On Jul 12, 2007, at 13:26, Rick wrote: > I try to make it easier for you to unders...

I got an output. But I changed it. But still the same problem. But is there a place with more info about this. From my understanding, am I linking windows rights with the unix rights. But I don?t really understand what I am doing. I just copy the winbind settings, and don?t really bother. But maybe when I understand what I am doing, I can fix the problem myself. Btw the problem is, to my understanding, is a right problem. I...

Hi, I am new to LLVM. I am experimenting with a toy backend. I don't understand "LowerFormalArguments didn't return a valid chain" in SelectionDAGBuilder.cpp file. What is the interface here? What does it mean by returning a Chain? Thanks Jen. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm...

Hi Duncan, Is it correct that opt does not understand codegen passes, but llc understands both analysis/transformation and codegen passes? I would like to modify bugpoint to work on this end. Thanks, - D. 2012/6/29 Duncan Sands <baldrick at free.fr>: > Hi Dima, > >> I'm trying to understand why opt tool does not know some of th...

Dear R helpers, I am trying to understand how to use the independence_test function in the coin package. I think I suffer from a misunderstanding about what the package does. Either that or I do not understand how to use it properly. Specifically, I cannot understand if I can test independence of arbitrary statistics. Take the following e...

Dear all, I am struggling to understand the johansen test procedure in the context of co-integration in time series. Yes I understand that this forum is not directly statistics related but still I am posting here hoping that I would get som help. The error correction representation of a VAR[p] model can be written as: Delta y[t]...

...is to set R_CStackLimit = (uintptr_t)-1 I tried typing this in the R console, but it says Error: object "R_CStackLimit" not found. So where do I type it? In one of the initialization files that R uses when it starts up? I can't find the answer anywhere. Please note that I don't understand words like "DLL" or "embed", and I don't understand how R works at any deep level. I am using R 2.8.1 on Windows XP. -- View this message in context: http://www.nabble.com/%22Error%3A-C-stack-usage-is-too-close-to-the-limit%22-%28can%27t-understand-explanations-of-how-to-f...

Hi, I am trying to implement Higham's algorithm for correcting a non positive definite covariance matrix. I found this code in R: http://projects.cs.kent.ac.uk/projects/cxxr/trac/browser/trunk/src/library/Recommended/Matrix/R/nearPD.R?rev=637 I managed to understand most of it, the only line I really don't understand is this one: X <- tcrossprod(Q * rep(d[p], each=nrow(Q)), Q) This line is supposed to calculate the matrix product Q*D*Q^T, Q is an n by m matrix and R is a diagonal n by n matrix. What does this mean? I also don't understand the meani...

Hi, Just trying to consolidate my knowledge of Dovecot and I want to understand various things rather than just key out lines of config in dovecot.conf with the hope of it working. What I wanted to clarify is my understanding the "socket listen" section of the config file. From my limited understanding, this section details how other processes can access the user...

Ram, Please read and understand the GetElementPtr FAQ available here: http://llvm.org/docs/GetElementPtr.html That will help you understand how it works. We wrote that document specifically because this question comes up all the time. Reid. On Sun, 2006-11-12 at 11:13 -0800, Ram Bhamidipaty wrote: > I am trying to underst...

...or me. >> >> What I'm most wondering: does modularity have any influence on the RPM >> packages at all. I mean, is there anything inside a RPM package which >> says >> it belongs to a module or it has a special function in a module? >> >>>From what I understand the RPMs are just completely normal packages and >> only YUM/DNF knows from some metadata that an RPM belongs to a module. >> Is >> that corrent? >> > > Well .. yes and no. > > Individual rpm packages have requirements for install .. so if a package > is built...