Displaying 20 results from an estimated 883 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