search for: deficiency

Displaying 20 results from an estimated 882 matches for "deficiency".

2009 Mar 13
1
lsfit w/ rank-deficient x
...c -0.0227787 0.1042860 -0.1729261 0.0000000 Warning message: In lsfit(x, y) : 'X' matrix was collinear ## correct values > lsfit(x[,-2], y)$coef Intercept a c -0.0227787 0.1042860 -0.1729261 I looked inside the lsfit code and it appears that even though rank-deficiency is detected there is no attempt to patch the coefficients. Why is that? Taking clues from the code it appears that the following trick might do the work: > foo <- lsfit(x, y) Warning message: In lsfit(x, y) : 'X' matrix was collinear > structure(foo$coefficients[foo$qr$pivot], na...
2010 Oct 07
2
[LLVMdev] [Q] x86 peephole deficiency
Hi all, I am slowly working on a SwitchInst optimizer (http://llvm.org/PR8125) and now I am running into a deficiency of the x86 peephole optimizer (or jump-threader?). Here is what I get: andl $3, %edi je .LBB0_4 # BB#2: # %nz # in Loop: Header=BB0_1 Depth=1 cmpl $2, %edi je .LBB0_6 #...
2012 Jan 31
0
Error in linearHypothesis.mlm: The error SSP matrix is apparently of deficient rank
Hi, I have encountered this error when attempting a One-way Repeated-measure ANOVA with my data. I have read the "Anova in car: SSPE apparently deficient rank" thread by I'm not sure the within-subject interaction has more degrees of freedom than subjects in my case. I have prepared the following testing script: rm(list = ls())
2008 Aug 13
1
summary.manova rank deficiency error + data
Dear R-users; Previously I posted a question about the problem of rank deficiency in summary.manova. As somebody suggested, I'm attaching a small part of the data set. #*************************************************** "test" <- structure(.Data = list(structure(.Data = c(rep(1,3),rep(2,18),rep(3,10)), levels = c("1", "2", "3"),...
2006 Jan 11
1
hypothesis testing for rank-deficient linear models
Take the following example: a <- rnorm(100) b <- trunc(3*runif(100)) g <- factor(trunc(4*runif(100)),labels=c('A','B','C','D')) y <- rnorm(100) + a + (b+1) * (unclass(g)+2) m <- lm(y~a+b*g) summary(m) Here b is discrete but not treated as a factor. I am interested in computing the effect of b within groups defined by the
2004 Nov 02
2
Color schemes that work for people with color-deficient vision
A recent article in the earth science literature cited below and available at http://geography.uoregon.edu/datagraphics/EOS/ points out that rainbow color schemes and mixtures of green and yellow can be troublesome for people with color-deficient vision. The authors propose alternative schemes that can be viewed and downloaded in RGB, HSV, CMYK, and RGB256 formats from
2010 Oct 07
0
[LLVMdev] [Q] x86 peephole deficiency
On Oct 6, 2010, at 6:16 PM, Gabor Greif wrote: > Hi all, > > I am slowly working on a SwitchInst optimizer (http://llvm.org/PR8125) > and now I am running into a deficiency of the x86 > peephole optimizer (or jump-threader?). Here is what I get: > > > andl $3, %edi > je .LBB0_4 > # BB#2: # %nz > # in Loop: Header=BB0_1 > Depth=1 > cm...
2007 Nov 03
0
rank-deficient model matrix
Dear: I want to construct a gee model in R. When I ran the program, there was a warning in the output. The warning is "Beginning Cgee S-function, @(#) geeformula.q 4.13 98/01/27 gee(cbind(hyper, nohyper) ~ I(Ethnic) + I(Gender) + I(drink) + : rank-deficient model matrix" What is the rank-deficient model matrix? What should I do to
2010 Jan 03
1
Anova in 'car': "SSPE apparently deficient rank"
I have design with two repeated-measures factor, and no grouping factor. I can analyze the dataset successfully in other software, including my legacy DOS version BMDP, and R's 'aov' function. I would like to use 'Anova' in 'car' in order to obtain the sphericity tests and the H-F corrected p-values. I do not believe the data are truly deficient in rank. I
2005 Dec 13
0
0/1 vector for indexing leads to funny behaviour (PR#8389) (maybe a documentation deficiency?)
.... . , length(x)} > (This seems to commit the sin of not telling the whole truth.) > > (3) Section 5.5 "Array Indexing. Subsections of an array" (In "An > Introduction to R") > > Question for others: did I miss something obvious, or is this a > documentation deficiency that zeros in indices are not discussed in 3 of > some obvious first places to look? > > If indeed this is a documentation deficiency, I'm happy to contribute > documentation patch, but I await other opinions before spending any time > on that. > > -- Tony Plate > > r...
2010 Oct 07
1
model.frame deficiency
...UTF-8 LC_NAME=C [9] LC_ADDRESS=C LC_TELEPHONE=C [11] LC_MEASUREMENT=en_US.UTF-8 LC_IDENTIFICATION=C attached base packages: [1] grDevices datasets splines graphics utils stats methods [8] base Editorial comment: I said "deficiency" not "bug" above, as I'm not so sure how good a model with 75 variables might be in the first place. (Though in this case the user is pretty savvy.) Terry Therneau
2006 Oct 31
0
6308380 e_ddi_majorinstance_to_path implementation deficient for /devices/pseudo paths
Author: cth Repository: /hg/zfs-crypto/gate Revision: 8c3216f8ae4cd2c699db490d2a79406f3c420d36 Log message: 6308380 e_ddi_majorinstance_to_path implementation deficient for /devices/pseudo paths Files: update: usr/src/uts/common/os/sunddi.c
2002 Apr 29
0
deficiencies in readline capability
When I first configured and built R, I did not have the GNU readline library installed on my system, so naturally I got an R without readline capabilities. I then installed the GNU readline library, and again configured and built R. I now have an R with readline capability, but it is a deficient readline capability, providing only one-line editing capability (e.g., CTRL-A, CTRL-E, CTRL-B,
2007 Feb 18
0
Predict(); Warning rank deficient matrix
I am trying to use lm() for resression followed by stepAIC function. Now when i try to use to predict for some input, predict() gives a warning : prediction from a Rank deficient matrix may be misleading. As I am new to R (or to statistics) How alarming this warning may be? Regards, ____________________________________________________________________________________ The fish are biting.
2010 Feb 20
0
deficient rank question
Hi everyone. I am a new user of R so thanks for your help! I'm running a regression and receive an error that states that the "residuals have rank 45 < 169." What does this mean? Thanks! -- View this message in context: http://n4.nabble.com/deficient-rank-question-tp1562644p1562644.html Sent from the R help mailing list archive at Nabble.com.
2019 Jul 24
6
[RFC] A new multidimensional array indexing intrinsic
...ract "notable type" anyway. Apart from all that, I'm pretty disappointed to see this as an intrinsic though. GEP is such a fundamental part of addressing in LLVM that bifurcating it into an intrinsic for either a language or an analysis seems like we'd be papering over a language deficiency. Cheers. Tim.
2010 Oct 13
2
[LLVMdev] [Q] x86 peephole deficiency
Am 07.10.2010 um 19:50 schrieb Chris Lattner: > > On Oct 6, 2010, at 6:16 PM, Gabor Greif wrote: > >> Hi all, >> >> I am slowly working on a SwitchInst optimizer (http://llvm.org/ >> PR8125) >> and now I am running into a deficiency of the x86 >> peephole optimizer (or jump-threader?). Here is what I get: >> >> >> andl $3, %edi >> je .LBB0_4 >> # BB#2: # %nz >> # in Loop: Header=BB0_1 >...
2013 Oct 05
2
bridged networking doesn't bring up eth0: RTNETLINK answers: File exists
I am running Xen on Debian wheezy. I switched from routed networking to bridged networking. Now I can''t seem to get eth0 to come up. When the network script tries to bring it up, it gets an error: RTNETLINK answers: File exists Any tips? details below brian root@trout:/etc/xen# egrep -v ''#|^ *$'' xend-config.sxp (network-script network-bridge) (vif-script vif-bridge)
2003 Nov 22
3
summary.manova and rank deficiency
Hi all, I have received the following error from summary.manova: Error in summary.manova(manova.test, test = "Pillai") : residuals have rank 36 < 64 The data is simulated data for 64 variables. The design is a 2*2 factorial with 10 replicates per treatment. Looking at the code for summary.manova, the error involves a problem with qr(). Does anyone have a suggestion as to how to
2010 Oct 13
0
[LLVMdev] [Q] x86 peephole deficiency
On Oct 13, 2010, at 11:22 AM, Gabor Greif wrote: > Hi Chris, > > I had a look into MachineCSE, but it looks like MBB-oriented. > The above problem is an inter-block one. Also MCSE seems > to perform value numbering on virtual/physical registers, which > does not map very well to status register bits that are implicitly > defined. > Any chance to recast this issue as a