similar to: better way to trick data frame structure?

Displaying 20 results from an estimated 7000 matches similar to: "better way to trick data frame structure?"

2010 Apr 30
1
how is xerror calculated in rpart?
Hi, I've searched online, in a few books, and in the archives, but haven't seen this. I believe that xerror is scaled to rel error on the first split. After fitting an rpart object, is it possible with a little math to determine the percentage of true classifications represented by a xerror value? -seth -- View this message in context:
2011 Mar 27
1
function to compare Brier scores from two models?
Hi, I have probability estimates from two predictive models. I have these estimates and also a binary outcome for a validation data set not used in calibrating either model. I would like to calculate the Brier score for both models on this binary outcome and test the hypothesis that the Brier scores are equal from the two models. I have not been able to find an R function to do this, can
2010 Jun 26
2
use a data frame whose name is stored as a string variable?
Hi, Let's say I have a data frame (called "example") with numeric values stored (columns V1 and V2). I also have a string variable storing this name x1<-"example" Is there a way to use the variable x so that R knows that I want the specified action to occur on the data frame? For example, summary (x) would return a summary of the data frame? I am considering this
2010 Feb 12
1
nlme w/no groups and spatially correlated residuals
Hi, I would like to specify a spherical correlation structure for spatially autocorrelated residuals in a model based upon the logistic function of a response that is a proportion (0 to 1) (so usual binary logistic regression is not an option). There is no need for a g-side random effect with grouping in this model. Am I correct that nlme requires this (meaning a correlated error structure only
2010 May 05
2
readLines with space-delimiter?
Hi, I am reading a large space-delimited text file into R (41 columns and many rows) and need to do run each row's values through another R object and then write to another text file. So, far using readLines and writeLines seems to be the best bet. I've gotten the data exchange working except each row is read in as one 'chunk', meaning the row has all values between two quotes
2022 May 10
5
Dovecot v2.3.19 released
Hi all! We are pleased to release v2.3.19 of Dovecot. The docker images have been upgraded to use bullseye as base image. https://dovecot.org/releases/2.3/dovecot-2.3.19.tar.gz https://dovecot.org/releases/2.3/dovecot-2.3.19.tar.gz.sig Binary packages in https://repo.dovecot.org/ Docker images in https://hub.docker.com/r/dovecot/dovecot Regards, Aki Tuomi Open-Xchange oy -- + Added
2022 May 10
5
Dovecot v2.3.19 released
Hi all! We are pleased to release v2.3.19 of Dovecot. The docker images have been upgraded to use bullseye as base image. https://dovecot.org/releases/2.3/dovecot-2.3.19.tar.gz https://dovecot.org/releases/2.3/dovecot-2.3.19.tar.gz.sig Binary packages in https://repo.dovecot.org/ Docker images in https://hub.docker.com/r/dovecot/dovecot Regards, Aki Tuomi Open-Xchange oy -- + Added
2005 Mar 29
5
Xen on OpenSSI?
Any thoughts on running Xen on OpenSSI? We have an app we''d like to cluster but is expressly and completely incompatible with the OSes that OpenSSI are supported on, but if we can run several Xen domains on a cluster we can run those OSes and, naturally, that app. Thoughts? CD _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com
2004 May 14
2
NLME model question
Dear R-helpers I have a problem related to the use of NLME I think is simply a matter of getting the nlme coding correct, but i cannot get my brain around it I am analysing some 24 growth curves of some cells , and i wanted to say that there are significant differences between the curves in two parameters that describe the pattern of growth. these parameters are from a logistic (r & k)
2005 Aug 18
2
lme model: Error in MEEM
Hi, We have data of two groups of subjects: 32 elderly, 14 young adults. for each subject we have 15 observations, each observation consisting of a reaction-time measure (RT) and an activation maesure (betadlpcv). since we want to analyze the influence of (age-)group and RT on the activation, we call: lme(betadlpcv ~ RT*group, data=our.data, random=~ RT |subject) this yields: Error in
2005 Aug 30
8
Who can help me?
I have own function wrote. I used an algorithm, which was written in Matlab. in matlab: ... gamma = inv(v)*g; ... #v = matrix of variable size, v=vv(k) => k=2 => dimension of v 2x2 #g = a line vector with 4 elements e.g. g=[1,0,2,0]; my rewritten r-file: ... gamma = solve(v)*g; ... which is my error? Who can help me? thank you in advance. Chris -- Lust, ein paar Euro nebenbei zu
2008 Mar 16
6
Developpers vs users
I think some developers should get at some time down their high horses. I comment or a question is not meant as degrading their work. It is just a fact seen no more no less, maybe followed by an idiotic question from somebody that may not have had a PHD in Windows API. Telling the user *you are an idiot*, replace your prefix because it's W2000 also W2000 *had never* been used *vergraut mir
2010 May 05
0
R-help Digest, Vol 87, Issue 5
Unsubscribe -----Original Message----- From: r-help-request at r-project.org Date: Wed, 05 May 2010 12:00:09 To: <r-help at r-project.org> Subject: R-help Digest, Vol 87, Issue 5 Send R-help mailing list submissions to r-help at r-project.org To subscribe or unsubscribe via the World Wide Web, visit https://stat.ethz.ch/mailman/listinfo/r-help or, via email, send a message with subject
2007 Jul 21
2
dict package: dictionary data structure for R
Hi all, The dict package provides a dictionary (hashtable) data structure much like R's built-in environment objects, but with the following differences: - The Dict class can be subclassed. - Four different hashing functions are implemented and the user can specify which to use when creating an instance. I'm sending this here as opposed to R-packages because this package will
2003 Mar 21
1
mkisofs bug ?
I need to make a iso image with the filesystem like nero does and i need it for the windows platform not for linux... I need something that does not restrict filenames, it doesn't boder me that are shortnames as long as it let's me access the directory or filename. This is the commandline I use to compile my iso file: %BASEDIR%\isolinux\buildcd\win32\mkisofs -r -log-file log.txt -J -l
2005 Oct 06
1
localboot 0
hi guys ! I have following problem (using pxelinux) I can't boot from my harddrive (netboot works just fine) i conwert my IPadress (with gethostip) and create a configfile like this: -----------C0A80001(192.168.0.1)---------- localboot 0 ----------------------end----------------------- at first te client looks for MAC and then for C0A80001 then i get following: Could not find kernel image:
2005 Jun 21
1
modprobe wctdm waiting for ever
Hi, I have a pentium 4 with Intel motherboard and one TDM400P (2 fxs, 2fxo) modprobe zaptel is Ok but When I execute modprobe wctdm never load the module, I can wait for 1 year but never response me (error or OK). I need to do ctrl+c Any idea? Edgardo >>> jan@irial.com 06/21/05 10:07 AM >>> i know that there are extensive rework on the transfer in SIP at the moment. --On
2006 Feb 21
2
SV: Re: Fromstring when sending e-mail on recievedvoicemail
Just one more question. In /etc/passwd there's a line with "asterisk" and "added by portage" in it. Can I just change this without screwing up everything? Or is there a command to change user info or something? As you can see, I'm not so good in Linux. -----Opprinnelig melding----- Fra: asterisk-users-bounces@lists.digium.com
1997 Feb 03
1
Tiger team.
Hi, I''m back. :-) Alex and a few others have expressed concerns about the legal implications of forming a tiger team. Maybe the term "tiger team" doesn''t officially represent what we meant. But I don''t mind redefining established terms if I feel like it :-) What we here call a "tiger team" is a team of people that try to beat the bad guys to
2003 Jul 10
2
pxelinux in Asus P55T2P4
Hi, as a new user to pxelinux I'm having trouble booting an Asus P55T2P4 from an Intel Etherexpress Pro card with PXE bootrom. I'm using pxelinux 2.04 (tried 2.05pre2 as well) with a Redhat 8.0 kernel (2.4.18) and ramdisk image (for pure testing purposes). The Mainboard I use is a P55T2P4, Rev. 2, newest Bios 0207, 80MB Ram, PCI VGA card and the EEPro. dhcp,tftp work fine, pxelinux