similar to: methodology question : is anova appropriate for these data?

Displaying 20 results from an estimated 800 matches similar to: "methodology question : is anova appropriate for these data?"

2009 Mar 27
0
read.table on long lines buggy (PR#13626)
Full_Name: Manikandan Narayanan Version: 2.8.1 OS: linux-gnu Submission from: (NULL) (155.91.28.231) Hi R-folks, I have two three-line text files: tst1, tst2 (they are the same except that the second line is longer in tst1; see cat() cmds below). read.table is only able to read the 3rd line in tst1, however reads tst2 correctly as shown below. This happens both in R 2.5.1 (windows) and R
2018 Mar 21
1
selectFGR vs weighted coxph for internal validation and calibration curve- competing risks model
Dear Geskus, I want to develop a prediction model. I followed your paper and analysed thro' weighted coxph approach. I can develop nomogram based on the final model also. But I do not know how to do internal validation of the model and subsequently obtain calibration plot. Is it possible to use Wolbers et al Epid 2009 approach 9 (R code for internal validation and calibration) . It is
2014 Jul 09
1
DFS queries via rpcclient to Windows 2012 Server fails
Hello, We previously had Win2008 R2 DCs which we have begun to replace with Win2012 servers (forest is still at 2008 level however). I was able to query DFS via rpcclient but now I find that I am unable to. I know that SMB3 was introduced in Win2012 but I believe that it should auto-negotiate earlier versions. I did however test from v4.1.9 as well, unfortunately that still fails. From Samba3
2018 Feb 16
0
Competing risks - calibration curve
Dear R users, I am new to R and wanted to apply competing risk methods in my research work. I used the R code given by Zhang et al in his paper 'Nomogram for survival analysis in the presence of competing risks published in Ann Trans Med 2017:5(20):403. I am struggling with getting calibration curve thro' internal validation. I am happy to receive suggestion in the coding as well
2008 May 13
1
Bubble plot pie chart map
Hello, I am currently trying to show the abundance of two species of zooplankton within the North Sea as pie chart bubble plots. I followed Werner Wernersen's advice in R help (http://finzi.psych.upenn.edu/R/Rhelp02a/archive/48644.html) and used Paul Murrell's paper "Integrating Grid Graphics Output with Base Graphics Output" (in R News) to try and do this (using the gridBase
2018 Mar 23
1
restricted cubic spline in FGR function
Dear Thomas, I want to use evaluate effect of Age using restricted cubic form in the FGR function as Fgr.crr <- FGR(Hist(time, event) ~ rcs(Age_years), data=dat) It provides error. " Error in parse(text = termtext, keep.source = FALSE): .... 1: response ~ rcs(Age_years Do I need to change any of the R code? Regards Amalraj Raja The University of Aberdeen is a charity
2018 Mar 18
1
selectFGR - variable selection in fine gray model for competing risks
Dear All, I would like to use R function 'selectFGR' of fine gray model in competing risks model. I used the 'Melanoma' data in 'riskRegression' package. Some of the variables are factor. I get solution for full model but not in variable selection model. Any advice how to use factor variable in 'selectFGR' function. The following R code is produced below
2018 Feb 16
0
Competing risks - calibration curve
Hi, Sorry not to provide R-code in my previous mail. R code is below #install.packages("rms") require(rms) #install.packages("mstate") library(mstate) require(splines) library(ggplot2) library(survival) library(splines) #install.packages("survsim") require(survsim) set.seed(10) df<-crisk.sim(n=500, foltime=10, dist.ev=rep("lnorm",2),
2018 Mar 22
0
exporting data to stata
Hi , library(foreign) write.dta(data1, "data1.dta") should work. The file will be saved in the working directory. Use getwd() to know the working directory. Best wishes Amalraj Raja -----Original Message----- From: R-help [mailto:r-help-bounces at r-project.org] On Behalf Of rosario scandurra Sent: 22 March 2018 07:47 To: r-help at r-project.org Subject: [R] exporting data to stata
2018 Mar 22
1
exporting data to stata
On Thu, Mar 22, 2018 at 4:52 AM, Raja, Dr. Edwin Amalraj <amalraj.raja at abdn.ac.uk> wrote: > Hi , > > library(foreign) > write.dta(data1, "data1.dta") > > should work. I don't think so: > library(foreign) > example(svydesign) > write.dta(dstrat, "~/Downloads/foo.dta") Error in write.dta(dstrat, "~/Downloads/foo.dta") : The
2018 Mar 21
0
selectFGR - variable selection in fine gray model for competing risks
Dear Raja, A Fine and Gray model can be fitted using the standard coxph function with weights that correct for right censoring and left truncation. Hence I guess any function that allows to perform stepwise regression with coxph should work. See e.g. my article in Biometrics https://doi.org/10.1111/j.1541-0420.2010.01420.x, or the vignette "Multi-state models and competing risks" in the
2013 Jun 26
6
[RFC] Proposed XenStore Interactions for Multi-Queue VIFs
I''m posting this for an initial round of comments; I don''t have any code at present to implement this, and wanted to get some feedback before getting started. All comments welcome :) Andrew. Proposed XenStore Interactions for Multi-Queue VIFs ======================================================================== Andrew J. Bennieston
2010 Feb 16
1
nls.lm & AIC
Hi there, I'm a PhD student investigating growth patterns in fish. I've been using the minpack.lm package to fit extended von Bertalanffy growth models that include explanatory covariates (temperature and density). I found the nls.lm comand a powerful tool to fit models with a lot of parameters. However, in order to select the best model over the possible candidates (without covariates,
2011 Jun 11
0
GLS model - diagnostic plots
I am applying a GLS model and would like to look at diagnostic plots of influence. The function (plot(model)) that works for linear models does not seem to function for GLS models. Is there a reason for this? Or is different code required? Sorry if it's a very basic question, but thanks for your help! The University of Aberdeen is a charity registered in Scotland, No SC013683.
2008 Sep 27
1
writeMat error
Hi I am using Ubuntu 8.04 64 bit, R as below, Matlab 7.6.0. I would like to transfer mat files back and forward between R and Matlab. Whilst I have used Matlab for years its been a long time since I have used R (hence question may be a bit simple) Running code A <- c(1:10) dim(A) <- c(2,5) library(R.matlab) writeMat('A.mat', A=A) Does not appear to generate any mat file
2009 Dec 09
2
Problem with if statement
I am trying to use the value of an ID variable in an if statement and not getting the results I expected. # ID values for two school districts > with(rf, tapply(DistrictID, DistrictName, min) ) Aberdeen School Dist. # 58 Buhl Joint School District 59340 53409 This creates DNAME as I expected ...
2006 Aug 19
9
SSH scans vs connection ratelimiting
Gang, For months now, we're all seeing repeated bruteforce attempts on SSH. I've configured my pf install to ratelimit TCP connections to port 22 and to automatically add IP-addresses that connect too fast to a table that's filtered: table <lamers> { } block quick from <lamers> to any pass in quick on $ext_if inet proto tcp from any to ($ext_if) port 22 modulate
2018 Mar 22
3
exporting data to stata
Hi, I am new to R and I want to export data into Stata. Could somebody help with that? Thanks a lot. This is the code I am using: > setwd("D:/datasets/Seg-bcn/ESBD") > data1 <- readRDS("r17045_ESDB_Habitatges_BDD_V_1_0.rds") > library(foreign) > write.dta(data="data1", file = "D:/datasets/data1.dta") Error in write.dta(data =
2006 Feb 15
1
Rails on Apache
Hi all, I''m trying to get rails to run under apache and have looked at the various how-to pages, but don''t seem to see an answer to my basic question: Can I do this without using mod-rewrite? Do I have to use .htaccess with various rewrite rules, or can I just do it with a really minimal .htaccess that only says something about the AddHandler for .cgi? -- cheers, Bruce
2004 Nov 14
0
Inbound Virus Alert
A virus has been detected in a message addressed to helpdesk.aberdeen at cnrinternational.com from r-help at lists.r-project.org. The subject of the message is Re: Here. The virus could not be cleaned and the message is held in Dirty Messages Message from: r-help at lists.r-project.org. Message subject: Re: Here Sent to: helpdesk.aberdeen at cnrinternational.com Dated: Sun, 14 Nov 2004