similar to: transitivity

Displaying 20 results from an estimated 500 matches similar to: "transitivity"

2008 Jul 03
1
Problem in applying conditional looping
Respected All, I hope you are enjoying good health, I am tring to write a program in R but could not be very sucessful. My program draws random sample form bivariate normal distribution and then compute a variable PIJ. For certian samples some entries of variable PIJ is apearing as negative, which result in negative variance estimator. I want to introduce a loop in my program that verify the each
2010 Mar 11
2
about IRT simulation
hello R: we have a two-parameter IRT simulation code. The goal is to generate a response matrix.But the "for" part doesn't run. we don't know what is wrong with it. Thanks so much~~~ I <- 10 J <- 5 response <- matrix(0, 10, 5) pij <- function(a,b,theta) { a <- rnorm(J, 0.8, 0.04) a b <- rnorm(J, 0, 1) b theta <- rnorm(I, 0,1) theta for( i in 1:I ) { for(
2004 May 07
1
sampling weights for lme
Dear All, I have a complex survey data with observations having differing probabilities of selection into the sample. I would like to run a linear mixed effects model and also to use weighting that takes this into consideration. As far as I know, however, the weighting option for the lme command from nlme package (or glmmPQL from MASS, for that matter) is related to heteroscedasticity. Is there a
2008 Jun 27
1
Problem in conditional looping
Respected All, I am writing a program in R and facing some problem with applying "if statment". Program first draw random numbers from bivariate normal distribution then compute variable say Pi and Pij from that sample and then further computation ..... ..... ..... In some samples Pij is appearing with negitive sign and ultimately resulted in an negative variance estimator.
2011 Aug 06
0
ridge regression - covariance matrices of ridge coefficients
For an application of ridge regression, I need to get the covariance matrices of the estimated regression coefficients in addition to the coefficients for all values of the ridge contstant, lambda. I've studied the code in MASS:::lm.ridge, but don't see how to do this because the code is vectorized using one svd calculation. The relevant lines from lm.ridge, using X, Y are:
2005 Nov 03
1
How to calculate errors in histogram values
Hi there, I'm new to R but I thought this is the most likely place I could get advice or hints w.r.t the following problem: I have a series of measurements xi with associated uncertainties dxi. I would like to construct the probability density histogram of this data where each density estimate has an associated error that is derived from the dxi. In other words, for large dxi the
2009 Mar 13
1
Hierarchical Bayesian Modeling in R
Hi Friends, I'm trying to model the consumer decisions (Click-Through Rate and Conversion) in Search Engine Advertising using a hierarchical Bayesian binary logit. The input data is the weekly CTRs and Avg. Position for each search keyword. CTR is modeled as (for each keyword i and week j): Pij = exp(C + Bi x Positionij + A1 x Lengthi + A2 x Brandi + A3 x ProductSpecifici) / [1 + exp(C +
2011 Sep 14
1
ruby to solve a physics question
I am trying to solve one of my graduate level physics problems with ruby... Here is what I have so far... a6=0.0 for n1 in -10..10 for n2 in -10..10 for n3 in -10..10 if n1!=0 and n2!=0 and n3!=0 p=Math.sqrt(n1**2+n2**2+n3**2+n1*n2/1.414+n1*n3/1.41+n2*n3/1.414) a6+=(1/p)**6 end end end end puts a6 What I''ve got here is a 10x10x10 face-centered
2011 Jul 11
3
Intransitive DAG
Aloha all, I have an adjacency matrix for an acyclic digraph that contains transitive relations, e.g. (u,v), (v,w), (u,w). I want a DAG with only intransitive relations. Can someone point me to an R function that will take my adjacency matrix and give me back one with only intransitive relations? In the example, I'd like to get rid of (u,w) and keep (u,v) and (v,w). All the best, Tom --
2004 Mar 07
1
Using character vectors to call data in the "cbind" command
Dear All, I have searched the forum but could not find a thread about the way to solve my problem. I am trying to find a way to use a subset of a list of variable names I have when I call the "cbind" command to create a data matrix, after I have attached a dataset. The nature of my program necessitates that I create different data matrices using a subset of variable names multiple
2008 Jul 08
1
Firebug 1.2.0b4 for FF3
The current beta version of Firebug doesn't appear to install on Firefox 3 on CentOS 5.2, apparently because it's reporting itself as 3.0b5 rather 3.0. I tweaked the minVersion requirement in the xpi to 3.0b5 and it seems to be working fine for me now. In case anyone else is interested in testing it, my tweaked version is available here:
2015 Feb 25
0
[LLVMdev] Jump Theading/GVN bug - moving discussion to llvm-dev
On 02/25/2015 10:41 AM, Rafael EspĂ­ndola wrote: >>> all the zero paths from entry to %a pass by %b. >> >> That is a graph-wise definition, sure. >> So, this is an interesting definition, and maybe this is part of the source >> of the problem. >> >> For SSA, at least GCC requires that both "definition block dominates use >> block" (which
1999 Aug 18
1
Your message Re: Samba and printer comments (July 5 1999)
Yes unfortunately I do not have much luck recieving help from the SAMBA mailing list. After much playing I found something weird that was seemingly causing incorrect comments. Most printers would recieve the comment - "no entries" which originally I assumed to be the default comment given by Win95 when it could not get a proper comment. However I later found that this is not the case.
2015 Feb 25
4
[LLVMdev] Jump Theading/GVN bug - moving discussion to llvm-dev
>> all the zero paths from entry to %a pass by %b. > > > That is a graph-wise definition, sure. > So, this is an interesting definition, and maybe this is part of the source > of the problem. > > For SSA, at least GCC requires that both "definition block dominates use > block" (which would be true here), *and* > that "definition appears before use in
2010 Jul 13
2
Missing packages
I haven't seen anything on the announce list and don't see these in the repos: qspice-client - http://rhn.redhat.com/errata/RHEA-2010-0492.html spice-xpi - http://rhn.redhat.com/errata/RHEA-2010-0493.html kvm - http://rhn.redhat.com/errata/RHBA-2010-0479.html Anyone know what the story is? David Martin
2006 Sep 04
1
mozilla and seamonkey
I have an XPI that I used to apply to mozilla. seamonkey is now loaded instead of mozilla. even if I do a "yum install mozilla" I still get seamonkey. How do I get mozilla. My XPI does not seem to work with seamonkey... THanks, Jerry -------------- next part -------------- An HTML attachment was scrubbed... URL:
2010 Apr 21
2
[LLVMdev] On the transitivity of subregisterness
Woud it be reasonable to assert that TargetRegisterInfo::isSubRegister() is a transitive relation? In other words, if A is a subregister of B and B is a subregister of C then A is a subregister of C. With this assumption, we could teach TableGen to sort registers topologically such that all the subregisters of R are numbered R+1, R+2, ... This produces better locality of reference and allows
2016 Apr 29
5
C5: The Firefox ESR 45.1.0 Nighmare
Centos replaced well-running customise Firefox with version ESR 45.1.0 * All the add-ons (language dictionaries, Adblock Plus, Classic Theme Restorer etc.) were disabled with no simple method of reactivating them. Reason given was they were "unsigned". * About:config xpinstall.signatures.required = false partially reduced the problem. * Then possible to reactivate some disabled
2011 Mar 31
3
OT: IBM and Dell rack
Hi all, sorry for the OT. Is IBM and Dell 42U rack compatible in dimension, rails, etc? Can we put IBM servers into Dell rack? Google says it depends. Much appreciated if you can share your experience. http://www.server-racks.com/why-all-racks-are-not-created-equal.html Thank you.
2009 Dec 18
2
google gears on 64 bit centos 5.4?
On Thu, Dec 17, 2009 at 9:15 AM, James Hogarth <james.hogarth at gmail.com> wrote: > I have google gears installed on our 64bit firefoxes on firefox 3.5.5 in > centos 5.4 with flash 10 - all from rpm ;) > > Works very nicely...... Sorry, I think I am missing something. What is the rpm/package called? So is it i386 installed on x8664, or what? Google's website still claims it