search for: exploratori

Dear all, Hyball is a free, DOS program for factor analysis and exploratory structural equation modeling (SEM), with some distinct capabilities. For a brief introduction and overview see http://www.psych.ualberta.ca/~rozeboom/READHYBL.TXT (A list of more formal references is at the end of this e-mail.) The program itself is available from http://www.psych.ualberta.ca/~rozeboom/ The program was

Dear List, I am looking to perform exploratory analyses of two (relatively) large datasets of categorical data. The first one is a binary 80x100 matrix, in the form: matrix(sample(c(0,1),25,replace=TRUE), nrow = 5, ncol=5, dimnames = list(c( "group1", "group2","group3", "group4","group5"), c("V.1", "V.2", "V.3",

Hi: I am doing some work that involves plotting points of interest superimposed on photographs and maps. I can produce the plots fine in R, but so far I have had to do the superimposition externally, which makes it tedious to do exploratory work. I have looked to see if there is some capability to put a background picture on a plot window, but I have not found anything. Advice, anyone? Cheers

EXPLORATORY DATA ANALYST / DATA MINER Australian Antarctic Division Band 6-7 (Research Scientist) AUS$47,563 - 63,922 pa The Exploratory Data Analyst (Data Miner) will use exploratory data analysis techniques to identify patterns in scientific data held in the Australian Antarctic Data Centre and elsewhere. The position has an equal emphasis on the exploratory and confirmatory aspects of

Hi, is there a way to take a data frame with 100+ columns and large data set to do efficient exploratory analysis in R with pairs? I find using pairs on the whole matrix is slow and the resulting matrix is tiny. Also the variable of interest for me is a binary var Y or N . Is there an efficient way to graphically view many variable relationships that does not look teeny ? I could do

Hi I want to install eda library. Where can I download it? I use R version 2.1.0 on Linux. Thanks. Stephen. ----- Original Message ----- From: Luis Ridao Cruz <Luisr at frs.fo> Date: Tuesday, September 13, 2005 1:32 pm Subject: Re: [R] How to erase objects > ?rm > > > >>> <v.schlecht at arcor.de> 13/09/2005 12:08:55 >>> > > Hi, I admit that

Dear R-helpers: I am doing some exploratory programming and am considering a routine that has several other routines defined within it, so that I can avoid a large and messy global re-programming to avoid naming conflicts. My question is this: Because it is interpreted, does R have to re-build these internal routines every time the new routine is called? I'm not overly worried right now

Normal 0 21 false false false MicrosoftInternetExplorer4 Dear R-helpers,   I was wondering whether there are any good books and/or website links that introduce mark-recapture analysis in R. In

hello, all. in my previous research, i have always used existing data. i am trying something new as an exploratory exercise and have never create my own variable form scratch. essentially, i am creating a variable for party affiliation. here is an example. var =party. levels= democrat, republican, other. respondents will indicate which category they fall under. for the sake of ease, i will

Hi all, This could be very basic. I want to do exploratory factor analysis but I don't have the data, rather I have the correlation matrix. How do I do this with just the correlation matrix? I know for principal components, I can just find the eigen values. Best regards -- View this message in context: http://r.789695.n4.nabble.com/Factor-analysis-tp3040618p3040618.html Sent from the R

Hi, I got the following comment from the reviewer of a paper (describing an algorithm implemented in R) that I submitted to BMC Bioinformatics: "Finally, which useful for exploratory work and some prototyping, neither R nor S-Plus are appropriate environments for deploying user applications that would receive much use." I can certainly respond by pointing out that CRAN contains

hello, I am trying to do exploratory factor analysis with BRFSS dataset ( http://www.cdc.gov/brfss/technical_infodata/surveydata/2008.htm) for a couple of days, but I was not able to do that and got frustrated. Can anybody help me with step by step guide? BRFSS dataset provides ASCII or SAS format. Thank you. chloe [[alternative HTML version deleted]]

Hi, It''s been forever and a day since I last posted here, mainly because I haven''t touched Xen in a few years now due to job changes... But now I''ve been handed a project to work with XenServer, Citrix''s commercial grade Xen. So, I wanted to ask if there were any people here with experience using XenServer, XenCenter and so on, or if you knew of a better list

Hi there, I would like some advice, not so much about how to use R, but about software that I need to complement R. I've rooted around in the FAQ's and done a few searches on this mailing list but haven't quite found the perspective I need. I am an experienced data analyst in my field (forest ecology and ecological monitoring) but new to R. I am a long time user of SPSS and have

Hi, I am trying to add a function in a linear quantile regresion to find a breakpoint. The function I want to add is: y=(k+ax)(x&lt;B)+(k+(a-d)B+dx)(x&gt;B) How do I write it in the rq() function? Do I need to define the parameters in any way and how do I do that? I'm a biologist new to R. Thanks! -- View this message in context:

Hello dear R-helpers, I'm working with R-2.15.2 on Windows 7 OS. I'm stucked with a merge of two data frames by characters. In each data frame I got two different list of names, that is my main-key to be merged. To figure out what I'm saying, I build up a modified "?merge" example, with errors by purpose: # Data for authors: authors <- data.frame( surname =

Hi all:I found some great demonstrations of interactive presentation graphics generated in R with the SVGAnnotation package, here:http://www.omegahat.org/SVGAnnotation/http://www.omegahat.org/SVGAnnotation/SVGAnnotationPaper/SVGAnnotationPaper.htmlI tried to install the package available at that website (it's not on CRAN) and am getting some pretty uninformative errors (see below). My best

Dear R-Help, I am using the function "topTable" from the LIMMA package. To estimate adjusted P-values there are several options (adjust="fdr" , adjust="BH") as shown below: topTable(fit, number = 10, adjust = "BH", fit$Name) I guess any of these options (fdr, BH, etc.) is using a default of FDR=0.05 which is quite conservative (i.e., very

Hello I have installed R-0.90.1 on my Linux (Redhat 6.2) machine, unfortunately I am not able to use a number of commands like e.g. smooth.spline and predict.smooth.spline. The error messages being given by is: Error: Object "smooth.spline" not found With the command library() I have checked or the libraries for the smoothing functions are there, as shown below. -------- >

Happy New Year ! XLSolutions February 2010 R courses schedule is now available online at 9 USA cities for with 13 new courses: *** Suggest a future course date/city (1) R-PLUS: A Point-and-Click Approach to R (2) S-PLUS / R : Programming Essentials. (3) R/S+ Fundamentals and Programming Techniques (4) R/S-PLUS Functions by Example. (5) S/R-PLUS Programming 3: Advanced Techniques and