Displaying 20 results from an estimated 1000 matches similar to: "Index matrix to pick elements from 3-dimensional matrix"
2002 Mar 21
5
repeating rows or columns within a matrix
Hello
Spse I have a matrix, say
1 2 3
4 5 6
7 8 9
and I would like to expand it by repeating rows within the matrix, to
get, if the repeating factor is 2, say:
123
123
456
456
789
789
(or columnwise as well) . There must be a smart way of doing that?
Many thanks
Juhana Vartiainen
juhana.vartiainen at labour.fi
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2002 Mar 20
5
inverted axis
Hello everybody!
Spse I have the following
X <- seq(1:100) #(a dim(100) sequence of integers 1:100 representing
the possible actions of player 1 and player2 in a game)
BR2X<- br2(X) #(a dim(100) sequence of points on range (1,100)
representing the best response function of player 2 to player 1:s
actions)
BR1X<- br1(X) #(a dim(100) sequence of points on range (1,100)
2016 Sep 09
1
Phantom DNS records visible with dig, but not samba-tool dns
We appear to have some phantom DNS records on both our domain controllers.
We can see the records using "dig", but not with samba-tool. We can't remove the records either.
(v-ward and v-fief are the DCs, Hawaii and Alaska are old DCs which were demoted without errors, I'm trying to clean up some DNS records which don't seem to have been cleaned).
All machines are
2001 Jun 17
2
Large codebook?
Hello.
Earlier I asked if it would be possible to use one common large
codebook for all audiofiles. Can you estimate how the following
system would work?
1. The audio would be divided to 16 samples blocks.
2. For each block, the first sample would be stored without any encoding.
3. Linear interpolations between the stored samples are computed.
4. The residues (length of 16 samples) between the
2016 Sep 13
1
Phantom DNS records visible with dig, but not samba-tool dns
On Tue, 13 Sep 2016 15:20:29 +0100
ash-samba--- via samba <samba at lists.samba.org> wrote:
> > And to get it editable:
> >
> > ldbedit -e nano -H /usr/local/samba/private/sam.ldb --cross-ncs
> > --show-binary -b
> > 'DC=_ldap._tcp.pdc,DC=_msdcs.samdom.example.com,CN=MicrosoftDNS,DC=ForestDnsZones,DC=samdom,DC=example,DC=com'
> > -s base
> >
2004 Sep 10
2
Re: Lossless AMI ADPCM
I'm copying the flac-dev list to see if anyone has any
feedback also...
--- Juhana Sadeharju <kouhia@nic.funet.fi> wrote:
> Hello again. I had time to check the paper out. I have filled the
> steps given in the paper with formulae, and then written a piece of
> C code. It is not complete code, but could be a reasonable start.
> Maybe there is one typo in the paper -- I have
2001 May 29
2
One codebook for all audiofiles?
[ I'm not in the list because I didn't find a digested version; please
move the lists to sourceforge.net, and we would have the digested version.
I read the replies from the archive. ]
Hello.
Would it be possible to allow Vorbis use the same codebook for multiple
files? I could keep a 650 MB codebook on CD-R and use that for all my
audiofiles. If that is possible, how much the
2007 Jan 19
1
Suggestion on how to improve efficiency when using MASS:::hubers on high-dimensional arrays
Hi Everyone,
Given the scenario I have, I was wondering if anyone would be able to
give me a hind on how to get the results from hubers() in a more
efficient way.
I have an outcome on an array [N x S x D].
I also have a factor (levels 1,2,3) stored on a matrix N x S.
My objective is to get "mu" and "sigma" for each of the N rows
(outcome) stratified by the factor
2003 Sep 24
1
net command,winbind and active directory
Hi all!
Is it possible to just join to domain with samba's net command without
creating machine account again if it is already created?
Can winbind use machine account to authenticate itself to AD because I'm
not an admin of AD i can't use administrator account for value of
--set-auth-user option.
If that is possible how do I get machine account password? is it
possible to get with
2007 Dec 12
1
OS-dependent behaviour of strucchange?
Using the following code:
library(strucchange)
load(file="y.rda")
ar1<-formula(y~lag(y,k=-1))
plot(Fstats(ar1))
(where the the data file can be downloaded from
www.ne.su.se/~mlu/downloads/y.rda) I have a problem replicating
identical plots on different implementations of R for different
operating systems; I get completely different results under Debian Linux
compared to Windows XP.
2009 Mar 28
1
stratified variables in a cox regression
>Hello,
I am hoping for assistance in regards to examining the contribution
of stratified variables in a cox regression. A previous post by Terry
Therneau noted that "That is the point of a strata; you are declaring
a variable to NOT be proportional hazards, and thus there is no
single "hazard ratio" that describes it". Given this purpose of
stratification, in the
2005 Mar 25
3
Stratified bootstrap question
Dear experts,
I am asking for help with a question regarding to stratified bootstrap.
My dataset is a longitudinal dataset (3 measurements per person at year
1, 4 and 7) composed of multiple clinic centers and multiple participants
within each clinic. It has missing values.
I want to do a bootstrap to find the standard errors and confidence
intervals for my variance components. My model is a
2013 Apr 24
2
Regression on stratified count data
Hi all:
For stratified count data,how to perform regression analysis?
My data:
age case oc count
1 1 1 21
1 1 2 26
1 2 1 17
1 2 2 59
2 1 1 18
2 1 2 88
2 2 1 7
2 2 2 95
age:
1:<40y
2:>40y
case:
1:patient
2:health
oc:
1:use drug
2:not use drug
My purpose:
Anaysis whether case and
2009 Apr 25
3
Nomogram with stratified cph in Design package
Hello,
I am using Dr. Harrell's design package to make a nomogram. I was able to
make a beautiful one without stratifying, however, I will need to stratify
to meet PH assumptions. This is where I go wrong, but I'm not sure where.
Non-Stratified Nomogram:
2010 Apr 04
2
calculating an interaction statistic from stratified data
Dear R community,
I have data on beta&standard error (for the main effect of variable x),
stratified by sex for my dataset. I wish to calculate the sex-interaction
effect (as beta&se) from these two stratified datasets. Is there a package
to do this? If not, any advice how to do it manually?
Thank you very much and best regards, Georg.
************************
Georg Ehret, JHU,
2012 Jun 01
1
Stratified Sampling with randomForest Regression
Hi All,
I'm using R's randomForest package (and it's quite awesome!) but I'd
really like to do some stratified sampling with a regression problem.
However, it appears that the package was designed to only accommodate
stratified sampling for classification purposes (see
https://stat.ethz.ch/pipermail/r-help/2006-November/117477.html). As
Andy suggests in the link just
2012 Mar 14
3
Creating 250 submatrices from a large single matrix with 2500 variables using loops
Dear all,
I have a large matrix with about 2500 variables, and 100 rows.
I would like to calculate the means of the every 10 variables starting from
1:2500 and saving the results as a vector or matrix.
How can I do that?
Alternatively, How can I create 250 subset matrices in the order of
variables 1:2500 in groups of 10 from the single matrix which had initially
2500 variables ?
I guess I have
2012 Oct 13
4
Problems with coxph and survfit in a stratified model with interactions
I?m trying to set up proportional hazard model that is stratified with
respect to covariate 1 and has an interaction between covariate 1 and
another variable, covariate 2. Both variables are categorical. In the
following, I try to illustrate the two problems that I?ve encountered, using
the lung dataset.
The first problem is the warning:
To me, it seems that there are too many dummies
2010 Apr 27
1
Randomization for block random clinical trials
Hi,
I’m new to R (just installed today) and I’m trying to figure out how to do
stratified randomisation using it. My google search expedition has lead me
to believe that blockrand package will most probably be the answer to it.
I’ve played around with blockrand for awhile and tried the sample code:
library(blockrand)
##stratified by sex
male <- blockrand(n=100,
2005 Aug 28
2
stratified Wilcoxon available?
Dear All,
is there a stratified version of the Wilcoxon test (also known as van
Elteren test) available in R?
I could find it in the survdiff function of the survival package for
censored data. I think, it should be possible to use this function creating
a dummy censoring indicator and setting it to not censored, but may be
there is a better way to perform the test.
Thanks,
Heinz T??chler