similar to: Tukey, planned contrasts or t-test without ANOVA? What is correct?

Dear R community, Is this sample size large enough to study differences between two groups of the populations? Q1: do the body temperatures differ between the two groups of the overwintering turtles juveniles and adults? One group (adults) has 6 turtles Second group (juveniles) has 1 turtle. There are 3 replications, i.e. the experiment was repeated over the three years, but using

Dear R community, I am wondering what experimental design I am dealing with? I study the effect of daily air temperature on daily body temperature of the overwintering turtles (i.e. sleeping in soil). The model is a cosine wave with the air temperature as a covariate. Objects are 19 overwintering turtles. Data were combined over the three years. Each turtle was studied only once during these

Hello list! I'm looking for someone who is local to Atlanta and is proficient in coding (PHP, MySQL, TCP/IP) and has knowledge of Asterisk. Knowledge in any CRM technologies, screen-pops integration, large call volume is also helpful and puts you right in my face. I do not mean to disrespect the list by posting here, but I don't know where to post so this is essentially asking for help on

> You're misreading the asm... nothing is touching memory. (BTW, "leal > -1(%eax), %eax" isn't a memory operation; it's just subtracting one > from %eax.) You might want to try reading the LLVM IR (which you can > generate with llvm-gcc -S -emit-llvm); it tends to be easier to read. I tried that, but I'm still learning LLVM. Seeing indvar, phi nodes, tail

Hello, I would like to order a matrix by a specific column. For instance: > test [,1] [,2] [,3] [1,] 1 100 21 [2,] 2 3 22 [3,] 3 100 23 [4,] 4 60 24 [5,] 5 55 25 [6,] 6 45 26 [7,] 7 75 27 [8,] 8 12 28 [9,] 9 10 29 [10,] 10 22 30 > test[order(test[,2]),] [,1] [,2] [,3] [1,] 2 3 22 [2,]

Dear Rhelpers I have the problem with initial values, could you please tell me how to solve it? Thank you June > p = summary(maxLik(fr,start=c(0,0,0,1,0,-25,-0.2))) Error in maxRoutine(fn = logLik, grad = grad, hess = hess, start = start, : NA in the initial gradient > p = summary(maxLik(fr,start=c(0,0,0,1,0,-25,-0.2),method="BFGS")) Error in optim(start, func, gr =

Hi List, Second attempt to get this issue diagnosed and solved. Samba Version 3.0.28el4 CentOS 4.7 The behavior is as follows when accessing Fox Pro dbf files. Users can access the files through the Fox Pro command interface without issues,when they choose a graphical environment (windows explore of the windows file open gui) the system returns an access denied message on the first

> Date: Mon, 2 Mar 2009 13:41:45 -0800 > From: eli.friedman at gmail.com > To: llvmdev at cs.uiuc.edu > Subject: Re: [LLVMdev] Tight overlapping loops and performance > > Hmm, on my computer, I get around 2.5 seconds with both gcc -O3 and > llvm-gcc -O3 (using llvm-gcc from svn). Not sure what you're doing > differently; I wouldn't be surprised if it's

Dear R community, I wrote a small program using for loop but it does not make cycles. My data: Dataframes: a2, a1, b0 and b1. Vector: d I would like to get b1 for each of i., i.e. totally 11. However, the program gives me b1 only for the last i =11. d<-as.vector(levels(a2$combin2)) for (i in 1:11){ a1<-a2[a2$combin2%in%d[i],] b1<-b0[b0$Date%in%(a1$Date),] } Your help is

Dear R community, I used a linear mixed model (named lm11) to model daily soil temperature depending upon vegetation cover and air temperature. I have almost 17,000 observations for six years. I can not account for autocorrelation in my model, since I receive the error message after applying the function: update(lm11, corr=corAR1()) Error: cannot allocate vector of size 220979 Kb Do

Dear all, I would be glad if someone could tell me if Tukey HSD (function of stats library) accept the NA values and could correct the unbalanced design (different number of sample in each group) Thanks for help Alice Le Bars

Dear forum members, How can I force a negative slope in a linear regression even though the slope might be positive? I will need it for the purpose of determining the trend due reasons other than biological because the biological (genetic) trend is not positive for these data. Thanks. Julia Example of the data: [1] 1.254 1.235 1.261 0.952 1.202 1.152 0.801 0.424 0.330 0.251 0.229

Dear all, I am doing a one way between subjects anova in an unbalanced data set. Suppose we have "a" levels of the one factor. I want to merge the not so significantly different levels into the same cluster. Can I do a Tukey Kramer HSD and then use the following algorithm: For i in 2 : "a" For j in 1 : i-1 if mean of level i is not significantly different

Hi, I need to determinate HSD value from a matrix like that Thesis Days A1 Cx 0 66.07 Cx 0 60.24 Cx 0 42.86 Tw 0 66.07 Tw 0 60.24 Tw 0 42.86 Aa 0 66.07 Aa 0 60.24 Aa 0 42.86 Qe 0 66.07 Qe 0 60.24 Qe 0 42.86 Cx 56 310.86 Cx 56 223.17 Cx 56 186.77 Tw 56 149.42 Tw 56 127.75 Tw 56 138.59 Aa 56 130.24 Aa 56 214.83 Aa 56 137.95 Qe 56 186.64 Qe 56 189.09 Qe 56 187.87 this is my script

Dear all Is there any way of doing a Tukey HSD post-hoc test after a Kruskal- Wallis or Friedman rank sum test (in the ctest package)? Thanks in advance, Albertus Dr. Albertus J. Smit Department of Botany University of Cape Town Private Bag Rondebosch 7700 South Africa Tel. +27 21 689 3032

Hello, I am really new to R and it's still a challenge to me. Currently I'm working on my Master's Thesis. My supervisor works with SAS and is not familiar with R at all. I want to run an Anova, a tukey-test and as a result I want to have the tukey-grouping ( something like A - AB - B) I came across the HSD.test in the agricolae-package, but... unfortunately I do not get an output

Hi, I was wondering if you could help me: The following are the first few lines of my data set: subject group condition depvar s1 c ver 114.87 s1 c feet 114.87 s1 c body 114.87 s2 c ver 73.54 s2 c feet 64.32 s2 c body 61.39 s3 a ver 114.87 s3 a feet 97.21 s3 a body 103.31 etc. I entered the following ANOVA command: >dat <- read.table("mydata.txt", header=T)

dear all effect of a, b and c on d, total 48 comparisons, got one anova result in model1=aov(d~A*B*C). can we get all the result in one command? or can we interpret the whole comparisons from this result? how it work in Tukey HSD? jose ____________________________________________________________________________________ Access over 1 million songs.

Drug US1 US2 Aptecha Celebrex 235.54 269.99 121.02 Detrol LA 157.99 190.99 55.3 Flomax 166.00 190.99 93.45 Lipitor 174.99 200.99 137.7 Novaldex 108.6 129.99 22.48 Norvasc 186.66 203.99 161.93 Plavix 107.99 106.99 64.53 Prevacid 117.39 134.99 59.83 Prilosec 115.99 126.99 57.75 Zyrtec 181.1 200.99 58.79 US1=c(235.54,157.99,166,174.99,108.60,186.66,107.99,117.39,115.99,181.10)

Hello, I am a little out of date and am still using S-Plus instead of R. I haven't been able to find the right place to ask this question, so I thought I would ask it here and hope that someone can help. I am unable to located the TukeyHSD() function in S-Plus. I have been able to use the GUI to run Tukey's test, but the results don't provide a p-value. Does anyone know how I can