search for: unmeasurably

Displaying 20 results from an estimated 24 matches for "unmeasurably".

Did you mean: unmeasurable
2003 Oct 07
2
Samba 3.0 is WORKING
I would just like to give a success report, since this list gets mostly bugs and questions.. Due mainly to the help that this list provided, I am now able to successfully deploy Linux/Samba servers in our corporate domain, and allow remote offices to function as part of our vast windows domain. Things are working, and the $$$ it has saved us is almost unmeasurable. Again, thanks for your help,
2008 Feb 23
0
Announcement: obsSens Package
The new package obsSens is now on the CRAN mirrors. This package has tools for doing senstitivity analysis for observational studies. The common criticism of observational studies is that there is the possibility of an unmeasured variable that is related to both the response and the predictor of interst that could explain the observed relationship. The sensitivity analysis is a "What
2008 Feb 23
0
Announcement: obsSens Package
The new package obsSens is now on the CRAN mirrors. This package has tools for doing senstitivity analysis for observational studies. The common criticism of observational studies is that there is the possibility of an unmeasured variable that is related to both the response and the predictor of interst that could explain the observed relationship. The sensitivity analysis is a "What
2006 Nov 01
2
echo with spa-3000
...e is a gross impedance mismatch on my side of the telco switch. I believe the following is happening (latency measures are guesses): Handset -(0ms)- PAP2 -(40ms)- Asterisk -(40ms)- SPA3000 -(0ms)- Telco Does an EC algorithm need a measurable delay to work? The EC would have to cope with an almost unmeasurably small echo delay (the delay only creeps in on the other side of the IP link. Is there another way I should be solving this problem, especially as I can keep Asterisk in the loop if I want to? Thanks James
2006 Aug 15
1
A model for possibly periodic data with varying amplitude [repost, much edited]
Hi dear R community, I have up to 12 measures of a protein for each of 6 patients, taken every two or three days. The pattern of the protein looks periodic, but the height of the peaks is highly variable. I'm testing for periodicity using a Monte Carlo simulation envelope approach applied to a cumulative periodogram. Now I want to predict the location of the peaks in time. Of course, the
2024 Jan 22
2
Use of geometric mean .. in good data analysis
Ah.... LOD's, typically LLOD's ("lower limits of detection"). Disclaimer: I am *NOT* in any sense an expert on such matters. What follows are just some comments based on my personal experience. Please filter accordingly. Also, while I kept it on list as Martin suggested it might be useful to do so, most folks probably can safely ignore the rant that follows as off topic and not
2004 Nov 24
1
OOT: frailty-multinivel
Hola! I started to search for information about multilevel survival models, and found frailty in R. This seems to be something of the same, is it the same? Then: why the name frailty (weekness?) -- Kjetil Halvorsen. Peace is the most effective weapon of mass construction. -- Mahdi Elmandjra
2024 Jan 22
1
Use of geometric mean .. in good data analysis
Still OT... but here is my own (I think previously mentioned here) rant on people thrashing about with log transformation and an all-too-common kludge to deal with zeros mixed among small numbers... https://gist.github.com/jdnewmil/99301a88de702ad2fcbaef33326b08b4 OP perhaps posting a link here to your question posed wherever you end up with it will help shorten this thread. On January 22, 2024
2006 Jul 31
0
Three questions about a model for possibly periodic data with varying amplitude
Hi dear R community, I have up to 12 measures of a protein for each of 6 patients, taken every two or three days. The pattern of the protein looks periodic, but the height of the peaks is highly variable. It's something like this: patient <- data.frame( day = c(1, 3, 5, 8, 10, 12, 15, 17, 19, 22, 24, 26), protein = c(5, 3, 10, 7, 2, 8, 25, 12, 7, 20, 10, 5) ) plot(patient$day,
2005 Nov 05
3
Keeping the queries down...
I''m trying to ensure that I keep the number of queries down a bit. If I have two model (lets call them Foo and Bar). They have a many to many relationship. Now I want to get (and paginate) records from Bar that are related to a certain record in Foo. For example I want all records from Bar whose name starts with ''C'' and are related to record Foo whose name is
2008 Apr 09
0
Endogenous variables in ordinal logistic (or probit) regression
A student brought this question to me and I can't find any articles or examples that are directly on point. Suppose there are 2 ordinal logistic regression models, and one wants to set them into a simultaneous equation framework. Y1 might be a 4 category scale about how much the respondent likes the American Flag and Y2 might be how much the respondent likes the Republican Party in America.
2004 Aug 06
1
k.j.wierenga@home.nl: &quot; why is there a timeout in _accept_connection (icecast/src/connection.c)&quot;
Sorry for replying in this way, I can send to the list ok, but I can't seem to subscribe to the list. majordomo doesn't accept my email address as a valid address (k.j.wierenga@home.nl > This is primarily to allow clean shutdown to proceed normally. The CPU load is > nominal - I doubt you'd be able to measure it. However, if you want to change > this timeout, it's safe
2015 Feb 19
1
Recycling memory with a small free list
...> doesn't, normal allocation takes place. > > The "free list" is stored as two small fixed size arrays containing > size/address pairs. Searching is done linearly using code that > optimizes to SIMD comparisons. For 4/8/16 slots overhead of the > search should be unmeasurably fast. > > The key to the approach would be keeping it simple, and realizing that > the goal is only to get the lowest hanging fruit: repeated > assignments of large arrays used in a loop. If it's complex, skip it > --- the behavior will be no worse than current. > > By th...
2012 Apr 26
3
[help]: VPID tagged TLBs question.
Hi, (Assume VPID is available and enabled.) I''m trying to figure the TLB stuff with VPIDs. I understand from the poorly written chapter in the intel manual that if an HVM vcpu is running then only the TLBs tagged with the vcpu.VPID will be used. If xen or a PV guest is running, then VPID 0 TLBs are what will be used. Now I understand the hvm_asid_flush_vcpu upon new guest cr3, will
2015 Feb 18
3
Recycling memory with a small free list
> ... with assignments inside of loops like this: > > reweight = function(iter, w, Q) { > for (i in 1:iter) { > wT = w * Q > } > } > ... before the RHS is executed, the LHS allocation would be added > to a small fixed length list of available space which is checked > before future allocations. If the same size is requested before the > next garbage
2015 Feb 19
0
Recycling memory with a small free list
...uits and recycles it. If it doesn't, normal allocation takes place. The "free list" is stored as two small fixed size arrays containing size/address pairs. Searching is done linearly using code that optimizes to SIMD comparisons. For 4/8/16 slots overhead of the search should be unmeasurably fast. The key to the approach would be keeping it simple, and realizing that the goal is only to get the lowest hanging fruit: repeated assignments of large arrays used in a loop. If it's complex, skip it --- the behavior will be no worse than current. By the way, what's happening with...
2024 Jan 22
1
Use of geometric mean .. in good data analysis
On Mon, 22 Jan 2024, Martin Maechler wrote: > I think it is a good question, not really only about geo-chemistry, but > about statistics in applied sciences (and engineering for that matter). > John W Tukey (and several other of the grands of the time) had the log > transform among the "First aid transformations": > > If the data for a continuous variable must all be
2018 Mar 28
0
coxme in R underestimates variance of random effect, when random effect is on observation level
Hello, I have a question concerning fitting a cox model with a random intercept, also known as a frailty model. I am using both the coxme package, and the frailty statement in coxph. Often 'shared' frailty models are implemented in practice, to group people who are from a cluster to account for homogeneity in outcomes for people from the same cluster. I am more interested in the classic
2002 Oct 21
3
How to fit Oggs in a specific amount of space?
I took 5 albums (Classical music) and converted them to Ogg Vorbis at "Full Bitrate" (-q10) and all 5 directories take up about 775 Megs which won't fit on a CD. So I ripped them again in WAV first (And give my friend back his CDs) but now I wanna know what quality setting should I use to fit them on 1 CD (The highest possible with total space used just under 700 Megs)
2009 Mar 07
6
using a noisy variable in regression (not an R question)
Hi, This is not an R question, but I've seen opinions given on non R topics, so I wanted to give it a try. :) How would one treat a variable that was measured once, but is known to fluctuate a lot? For example, I want to include a hormone in my regression as an explanatory variable. However, this hormone varies in its levels throughout a day. Nevertheless, its levels differ substantially