similar to: Testing the equality of correlations

Hello, I've assembled a Multivariate ctv (with a lot of help from Achim Zeleis, who has now posted the view on CRAN). I'd be grateful for comments regarding missing packages / functions. Opinions on the organisation of the view would also be appreciated, as well as having any errors pointed out. I've adopted a rather broad and vague definition of "multivariate", which may

Hello, (apologies, I'm not entirely sure whether this question is about R or my limitations with PowerPoint). I've submitted a paper (which has been accepted) but the journal now require me to submit graphs that are "editable in PowerPoint". I would be grateful for suggestions as to how I should do this. The best route seems to be to copy-and-paste the figures from the

Hello, I would be extremely grateful if anyone is able to provide any (rather obscure) advice on using R with Condor. I think I'm following Xianhong Xie's instructions (R News 5(2) 13-15) correctly, but my job just stays held in the queue (for days / months). I've checked condor_status to make sure there are plenty of machines available, but can't see any way to attack the

I am seeking information on whether anyone has written code to perform Horn's parallel analysis (a procedure that informs the selection of the proper number of components in PCA) in R. Thank you in advance for any help you can provide. Please respond off-list at the email address below. Karen Douglas ******************************************************************* Karen Douglas,

I have constructed the function mml2 (below) based on the likelihood function described in the minimal latex I have pasted below for anyone who wants to look at it. This function finds parameter estimates for a basic Rasch (IRT) model. Using the function without the gradient, using either nlminb or optim returns the correct parameter estimates and, in the case of optim, the correct standard

Hi all, I have recently added Speex support to my app (http://sbooth.org/Max/) and am in the process of creating a GUI for the user to control the codec parameters. I am new to Speex and as such I am not really sure which parameters are more important than others, and deserve prominent placement, etc. Is there a recommended GUI for people to follow or use as an example? Stephen

I need to refresh my memory on Probability Theory, especially on conditional probability. In particular, I want to solve the following two problems. Can somebody point me some good books on Probability Theory? Thank you! 1. Z=X+Y, where X and Y are independent random variables and their distributions are known. Now, I want to compute E(X | Z = z). 2.Suppose that I have $I \times J$ random number

Sorry for the repetition, unless I've got bad deja vu this questions been asked before but I couldn't turn up an answer on CRAN. Is there already any code in existence for local dependence measures such as Moran's I or Getis and Ord G? Also, S-Plus has a number of interstingly named Cluster Algorithms based on some previous stand-alone fortran algorithms (agnes, daisy etc.) which

I'm sorry for the really vague subject line but I am not sure how to succinctly describe what I am doing and what the problem is. But, here goes: 1. I have data with two-way data with frequencies. Below is an example, though in reality I am looking at about 10 different variables that I am crossing so the values of X1 and X2 change. X1 and X2 are place holders. Here's the dataset

Hello, I can't figure out how to use the upper.panel and lower.panel options in pairs to alter the label options for either panel independently of the other. I would like to be able to show the pairwise scatter plots for the data as they are (a vanilla pairs plot?) but separately to be able to label the points according to a factor level. It is easy enough to do this independently, but I

I''m just upgraded GetText from 1.4.0 to 1.6.0, and all my tests got broken. I got this error: ruby/lib/ruby/gems/1.8/gems/activerecord-1.14.3/lib/active_record/base.rb:1129:in `method_missing'': undefined method `N_'' for User:Class (NoMethodError) etc My model user.rb has this line: validates_format_of :login, :with => /^[a-zA-Z0-9_]+$/, :message =>

I''m having this problem with IE and getElementsBySelector, but am a relative js novice, so quite possible -- likely even -- that I''m doing something stupid. Either way, a fresh pair of eyes would help. Basically I''m duplicating a fieldset within a form (so you can upload more than one photo). [BTW, the fieldsets have a CSS id which relates to the object id of the

Hi all, I have an interesting one - Solaris uses a lot of commands to configure specific items. A simple example is coreadm. In this example: # coreadm -p "/var/core/core_%n_%f_%u_%g_%t_%p" will set the directory and filename to dump core files (with some expansion). The question is - how to get this to run only if the config has changed. I have come up with 2 options, neither of

http://bugzilla.mindrot.org/show_bug.cgi?id=1361 Summary: ssh should handle leading comma in authentication method list Product: Portable OpenSSH Version: 4.7p1 Platform: ix86 OS/Version: Linux Status: NEW Severity: normal Priority: P2 Component: ssh AssignedTo: bitbucket at

Dear [R] people Could you please help with following data transformation. Any suggestions, hints, references and even guessing on performing any of the following steps are highly appreciated. Those transformations are crucial for my work. (n_, _n, j_, k_ signify numbers) SOURCE DATA: id cycle1 cycle2 cycle3 ? cycle_n 1 c c c c 1 m m m m 1 f f f f 2 m m m NA 2 f f f NA 2 c c c NA 3 a a

Dear all this is a question of model specification in lme which I'd for which I'd greatly appreciate some guidance. Suppose I have data in long format gene treatment rep Y 1 1 1 4.32 1 1 2 4.67 1 1 3 5.09 . . . . . . . . . . . . 1 4 1 3.67 1 4 2 4.64 1 4 3 4.87 .

HI, I would like to extract the variance components estimation in lme function like a.fit<-lme(distance~age, data=aaa, random=~day/subject) There should be three variances \sigma_day, \sigma_{day %in% subject } and \sigma_e. I can extract the \sigma_e using something like a.fit$var. However, I cannot manage to extract the first two variance components. I can only see the results in

Hello! I would like to get MLE for parameter lambda of Poisson distribution. I can use fitdistr() for this. After looking a bit into the code of this function I can see that value for lambda and its standard error is estimated via estimate <- mean(x) sds <- sqrt(estimate/n) Is this MLE? With my poor math/stat knowledge I thought that MLE for Poisson parameter is (in mixture of LaTeX

Good morning, May I ask a naive follow up to this? Having now been granted limited rights to use R-windows on a work PC, I wish to set up my home PC to support compiling packages and so on. I currently have a working Linux set-up at home, is there any general advice as to whether it would be better to add in the cross-compilers there or is it better to persuade my home PC to dual boot windows

what is the difference between destroy and delete in AR I am not sure what they mean by "Destroys the record with the given id by instantiating the object and calling destroy<http://api.rubyonrails.com/classes/ActiveRecord/Base.html#M000866>(all the callbacks are the triggered). If an array of ids is provided, all of them are destroyed." in