search for: efford

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2016 Apr 10
2
R.squared in summary.lm with weights
> On Apr 10, 2016, at 3:11 AM, Murray Efford <murray.efford at otago.ac.nz> wrote: > > Martin - > Thanks, but although hatvalues() is useful for calculating PRESS, I can't find anything directly relevant to my question in the influence help pages. After some burrowing in the literature I'm doubting there is an answer o...
2016 Apr 09
2
R.squared in summary.lm with weights
>>>>> Murray Efford <murray.efford at otago.ac.nz> >>>>> on Fri, 8 Apr 2016 18:45:33 +0000 writes: > Thanks for these perfectly consistent replies - I didn't > understand the purpose of m = sum(w * f/sum(w)) and saw it > merely as a weighted average of the fitted valu...
2016 Apr 10
0
R.squared in summary.lm with weights
...nything directly relevant to my question in the influence help pages. After some burrowing in the literature I'm doubting there is an answer out there (PRESS R^2 is always presented in a fairly ad hoc way). This is a new topic, as you say, and perhaps better handled on a statistics list. Murray Efford [BTW stats ::: influence.lm just gets me function (model, do.coef = TRUE, ...) lm.influence(model, do.coef = do.coef, ...) <bytecode: 0x00000000081023b8> <environment: namespace:stats> which is not very helpful] ________________________________________ From: Martin Maechler <maec...
2016 Apr 10
0
R.squared in summary.lm with weights
> On Apr 10, 2016, at 9:38 AM, David Winsemius <dwinsemius at comcast.net> wrote: > >> >> On Apr 10, 2016, at 3:11 AM, Murray Efford <murray.efford at otago.ac.nz> wrote: >> >> Martin - >> Thanks, but although hatvalues() is useful for calculating PRESS, I can't find anything directly relevant to my question in the influence help pages. After some burrowing in the literature I'm doubting there is...
2009 Sep 26
1
Compatibility of external C code across platforms
...is respect? I'm working in Windows XP with R2.9.2 and Rtools 2.9. [Incidentally, when I use a makevars.win file to include these gcc options in Rcmd build etc. the problem with variable-length arrays is not flagged; maybe my command-line gcc is a different version from that in Rtools] Murray Efford University of Otago Dunedin, New Zealand murray.efford@otago.ac.nz<mailto:murray.efford@otago.ac.nz> [[alternative HTML version deleted]]
2016 Apr 07
4
R.squared in summary.lm with weights
...ghted mean of the observations is calculated as if the weights are on the original scale: [...] f <- z$fitted.values w <- z$weights [...] m <- sum(w * f/sum(w)) [mss <-] sum(w * (f - m)^2) [...] This seems inconsistent to me. What am I missing? Murray Efford
2016 Apr 07
0
R.squared in summary.lm with weights
Do you mean w <- z$residuals ? Type names(z) to see the list of item in your model. I ran your code on a lm and it work fine. You don't need the brackets around mss <- Michael Long On 04/07/2016 02:21 PM, Murray Efford wrote: > Following some old advice on this list, I have been reading the code for summary.lm to understand the computation of R-squared from a weighted regression. Usually weights in lm are applied to squared residuals, but I see that the weighted mean of the observations is calculated as if the...
2016 Apr 08
2
R.squared in summary.lm with weights
On 08 Apr 2016, at 12:57 , Duncan Murdoch <murdoch.duncan at gmail.com> wrote: > On 07/04/2016 5:21 PM, Murray Efford wrote: >> Following some old advice on this list, I have been reading the code for summary.lm to understand the computation of R-squared from a weighted regression. Usually weights in lm are applied to squared residuals, but I see that the weighted mean of the observations is calculated as if...
2016 Apr 08
0
R.squared in summary.lm with weights
...es sense to substitute the vector of leave-one-out fitted values for f here? m <- sum(w * f/sum(w)) mss <- sum(w * (f - m)^2) Murray ________________________________________ From: peter dalgaard <pdalgd at gmail.com> Sent: Friday, 8 April 2016 11:28 p.m. To: Duncan Murdoch Cc: Murray Efford; r-help at r-project.org Subject: Re: [R] R.squared in summary.lm with weights On 08 Apr 2016, at 12:57 , Duncan Murdoch <murdoch.duncan at gmail.com> wrote: > On 07/04/2016 5:21 PM, Murray Efford wrote: >> Following some old advice on this list, I have been reading the code for su...
2010 Apr 28
1
Rd2dvi pagination of index in pdf manual
...to the wrong page. 2 pages happens to be the length of the package overview man page inserted (out of alphabetical order) after 'R topics documented'. I'd be grateful for suggestions on what might be causing this and how I might fix it. I'm using R 2.10.1 and Rtools 2.10.1. Murray Efford
2006 Aug 03
1
questions on plotting dedrograms
...he line to the root node should be as long as the rest of the plot. How can i do that ? (i want to use it for comparing 2 clusterings with the same maximal possible dissimilarity) The other question is, how can i plot the dendrogram horizontal, but with the root node to the right ? thx for your efford alexander scheidler
2016 Apr 08
0
R.squared in summary.lm with weights
On 07/04/2016 5:21 PM, Murray Efford wrote: > Following some old advice on this list, I have been reading the code for summary.lm to understand the computation of R-squared from a weighted regression. Usually weights in lm are applied to squared residuals, but I see that the weighted mean of the observations is calculated as if the...
2018 May 22
2
Shepherd request (P83): Multipath TCP: Present Use Cases and an Upstream Future
...phen's feedback on earlier patches, i tried to minimize the changes to > >netvsc and only commonize the notifier and the main event handler routine. > >Another complication is that netvsc does part of registration in a delayed workqueue. > > :( This kind of degrades the whole efford of having single solution > in "failover" module. I think that common parts, as > netdev_rx_handler_register() and others certainly is should be inside > the common module. This is not a good time to minimize changes. Let's do > the thing properly and fix the netvsc mess n...
2018 May 22
2
Shepherd request (P83): Multipath TCP: Present Use Cases and an Upstream Future
...phen's feedback on earlier patches, i tried to minimize the changes to > >netvsc and only commonize the notifier and the main event handler routine. > >Another complication is that netvsc does part of registration in a delayed workqueue. > > :( This kind of degrades the whole efford of having single solution > in "failover" module. I think that common parts, as > netdev_rx_handler_register() and others certainly is should be inside > the common module. This is not a good time to minimize changes. Let's do > the thing properly and fix the netvsc mess n...
2006 May 30
3
Current process for tickets
This afternoon I was looking at the tickets posted in Trac, and I saw that there we quite a few stale tickets and patches. A lot of these are filed against very old versions of Rails, I think it''s fair for the people posting these tickets that they get resolved. Either by just removing them all or by weeding them out. I understand that closing tickets is not very glamorous work
2020 Jun 21
4
php 5.6 on CentOS 6
I am in the process of moving various apps and data off a CentOS 6 server to a new server running CentOS 7. As part of the migration process I need to upgrade an app and corresponding data files which requires php 5.6. I do have php 5.5 (and 5.4) installed since earlier but now tried to install php 5.6 from SCL which failed. This is the package I tried:
2018 May 22
2
[PATCH net-next v11 2/5] netvsc: refactor notifier/event handling code to use the failover framework
...k on earlier patches, i tried to minimize the changes to >>>> netvsc and only commonize the notifier and the main event handler routine. >>>> Another complication is that netvsc does part of registration in a delayed workqueue. >>> :( This kind of degrades the whole efford of having single solution >>> in "failover" module. I think that common parts, as >>> netdev_rx_handler_register() and others certainly is should be inside >>> the common module. This is not a good time to minimize changes. Let's do >>> the thing pr...
2018 May 22
2
[PATCH net-next v11 2/5] netvsc: refactor notifier/event handling code to use the failover framework
...k on earlier patches, i tried to minimize the changes to >>>> netvsc and only commonize the notifier and the main event handler routine. >>>> Another complication is that netvsc does part of registration in a delayed workqueue. >>> :( This kind of degrades the whole efford of having single solution >>> in "failover" module. I think that common parts, as >>> netdev_rx_handler_register() and others certainly is should be inside >>> the common module. This is not a good time to minimize changes. Let's do >>> the thing pr...
2018 May 22
2
[PATCH net-next v11 2/5] netvsc: refactor notifier/event handling code to use the failover framework
On 5/22/2018 2:08 AM, Jiri Pirko wrote: > Tue, May 22, 2018 at 11:06:37AM CEST, jiri at resnulli.us wrote: >> Tue, May 22, 2018 at 04:06:18AM CEST, sridhar.samudrala at intel.com wrote: >>> Use the registration/notification framework supported by the generic >>> failover infrastructure. >>> >>> Signed-off-by: Sridhar Samudrala <sridhar.samudrala at
2020 Jun 21
2
php 5.6 on CentOS 6
...Remi's collection or something else? I was hoping SCL would have it since it is well-tried and easy to sandbox on the computer. >> >> Thank you. >> >> H > > PHP 5.6 is EOL. https://www.php.net/supported-versions.php > > Why would a project like SCL spend any efford on patching that old PHP release? Everyone using PHP is happy to get a current release. If your application insists on using 5.6 then move on and look for a different application. > > Alexander > > > > > _______________________________________________ > CentOS mailing list &...