search for: effords

> 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 out there (PRESS R^2 is always presented in a fairly

>>>>> 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 values. My > ultimate concern is how to compute an appropriate

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 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

> 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

A package I have written makes considerable use of external C code. There appear to be no problems building a Windows binary with the GNU C compiler, but now I would like to make the package available for other platforms. A stringent check of the code with the gcc options '-Wall -pedantic' flags many nested functions and variable-length arrays that are not allowed in ISO C. Is it

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 weights are on the original scale: [...] f <- z$fitted.values w <- z$weights [...] m

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

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

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 values. My ultimate concern is how to compute an appropriate weighted TSS (or equivalently, MSS) for PRESS-R^2 = 1 - PRESS/TSS = 1 - PRESS/ (MSS + PRESS). Do you think it then makes sense to substitute the vector of leave-one-out fitted

I construct a pdf package manual in Windows 7 using R CMD Rd2dvi --pdf --no-preview [packagename] Page numbers are listed correctly under 'R topics documented' at the front, but incorrectly (offset by -2 pages) in the Index at the back. Following the hyperlinked page numbers in the Index takes you to the wrong page. 2 pages happens to be the length of the package overview man page inserted

Hi, i've two questions concerning the plot of a dendrogram. first, i use hclust for clustering and if i plot the dendrogram, then the maximal height is the maximal dissimilarity found in my data. but i want to have a arbitary maximal height. for example if the maximal dissimilarity in my data is 50 and i want a height of 100, the plot should be compressed by 1/2 and the line to the root

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 weights are on the original scale: > > [...] > f

On Tue, May 22, 2018 at 05:36:14PM +0200, Jiri Pirko wrote: > Tue, May 22, 2018 at 05:28:42PM CEST, sridhar.samudrala at intel.com wrote: > > > >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: > >> > >

On Tue, May 22, 2018 at 05:36:14PM +0200, Jiri Pirko wrote: > Tue, May 22, 2018 at 05:28:42PM CEST, sridhar.samudrala at intel.com wrote: > > > >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: > >> > >

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

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:

On 5/22/2018 9:12 AM, Jiri Pirko wrote: > Fixing the subj, sorry about that. > > Tue, May 22, 2018 at 05:46:21PM CEST, mst at redhat.com wrote: >> On Tue, May 22, 2018 at 05:36:14PM +0200, Jiri Pirko wrote: >>> Tue, May 22, 2018 at 05:28:42PM CEST, sridhar.samudrala at intel.com wrote: >>>> On 5/22/2018 2:08 AM, Jiri Pirko wrote: >>>>> Tue, May

On 5/22/2018 9:12 AM, Jiri Pirko wrote: > Fixing the subj, sorry about that. > > Tue, May 22, 2018 at 05:46:21PM CEST, mst at redhat.com wrote: >> On Tue, May 22, 2018 at 05:36:14PM +0200, Jiri Pirko wrote: >>> Tue, May 22, 2018 at 05:28:42PM CEST, sridhar.samudrala at intel.com wrote: >>>> On 5/22/2018 2:08 AM, Jiri Pirko wrote: >>>>> Tue, May

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

On 06/21/2020 02:34 PM, Alexander Dalloz wrote: > Am 21.06.2020 um 20:30 schrieb H: >> 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