search for: mancova

Hello, I need to perform a mixed-model (with nesting) MANCOVA, using Type III sums of squares. I know how to perform each of these types of tests individually, but I am not sure if performing a mixed-model MANCOVA is possible. Please let me know. Erika <>< <>< <>< <>< <>< <>< &lt...

Hi everybidy Does anybody knows the code in R relate to MANCOVA???I saw somewhere lm(Y`...) but ma not so sure.. Thanks in advance!! Paola -- View this message in context: http://r.789695.n4.nabble.com/MANCOVA-tp4647735.html Sent from the R help mailing list archive at Nabble.com.

Anyone I'm wondering how to make confidence intervals (bonferroni or simultaneous) when using Manova and Mancova in Splus. I 'm doing manova with four variables on length and four variables on weight (of salmon). The measuring is done on different time points. I'm working on my master in the field between biostatistics and fishery biology. If anyone knows a good book on mancova and manova in Splus...

...l, I'm trying to compare two sets of variables, the first set is composed exclusively of numerical variables and the second regroups factors and numerical variables. I can't use a Manova because of this inclusion of numerical variables in the second set. The solution should be to perform a Mancova, but I didn't find any package that allow this type of test. I've already looked in this forum and on the net to find answers, but the only thing I've found is the following: lm(as.matrix(Y) ~ x+z) x and z could be numerical and factors. The problem with that is it actually only per...

...* F3 * F2 + (1|item)) > anova(res.lmertest) # for type III SS I also considered running repeated-measures ANCOVA using aov() with nested error terms, but that wouldn't protect me against sphericity assumption violations. I also considered using car::Anova() for running a repeated-measures MANCOVA analysis, but if I got this thread right (http://thread.gmane.org/gmane.comp.lang.r.general/270271/focus=270275), this is (at present) not possible to do. Are these ways of analyzing data valid? Concerning the type of SS: I tried to read all discussions in this list on this topic. If I got it rig...

...e 7 continuous response variables (actually integers, approximately normal) measured for each subject: Y1 to Y7, and two continuous covariates C1, C2 (they are both integers). I want to perform all pairwise comparisons for each response variable between groups. I have searched for a way to do a MANCOVA in R to no avail. I am familiar with summary.manova, and with Venables & Ripley "Modern Applied Statistics With S" and Everitt's "An R and S-Plus Companion to Multivariate Analysis". However, I am neither a statistician nor a programmer so I am finding it hard to fig...

Hi, I have been using R to do multiple analyses of variance with two covariates, but recently found that the results in SPSS were very different. I have check several books and web resources and I think that both methods are correct, but I am less familiar with R, so I was hoping someone could offer some suggestions. Oddly simple ANOVA is the same in SPSS and R. Including covariates improves the

I'm new to the list and I've been playing about with R for some months now, mostly using the power analysis routines including the "pwr" package. I'm currently looking at a project which will require a repeated-measures MANCOVA. I've been reviewing the files available at CRAN, including http://cran.r-project.org/doc/contrib/Lemon-kickstart/kr_repms.html and http://tolstoy.newcastle.edu.au/R/help/03b/7663.html which describe repeated-measures ANOVA Is making this a repeated-measures MANCOVA as simple as adding a cova...

...'ve just released the latest R-Forge versions of heplots 0.9-3 and candisc 0.5-18 to CRAN. They should appear there within a day or two. == heplots The heplots package provides functions for visualizing hypothesis tests in multivariate linear models (MANOVA, multivariate multiple regression, MANCOVA, etc.). They represent sums-of-squares-and-products matrices for linear hypotheses and for error using ellipses (in two dimensions), ellipsoids (in three dimensions), or by line segments in one dimension. Both of these require the latest version of car (2.0-0) but allow some backward compatibili...

Dear all, I'm writing my manuscript to publish after analysis my final data with ANOVA, ANCOVA, MANCOVA. In a section of my result, I did correlation of my data (2 categirical factors with 2 levels: Quantity & Quality; 2 dependent var: Irid.area & Casa.PC1, and 1 co-var: SL). But as some traits (here Irid.area) are significantly influenced by the covariate (standard length, SL), I need to use...

...jo C.S.) 17. arima (nuncio m) 18. Re: vertical kites in KiteChart (plotrix) (elpape) 19. Re: LME with 2 factors with 3 levels each (Dennis Murphy) 20. Re: Data Gaps (dpender) 21. nnet help (Raji) 22. Re: How to fix error in the package 'rgenoud' (Wonsang You) 23. Nonparametric MANCOVA using matrices (Niccol? Bassani) 24. RODBC: forcing a special column to be read in as character (RINNER Heinrich) 25. Re: How to fix error in the package 'rgenoud' (Wonsang You) 26. Re: Date Time Objects (Henrique Dallazuanna) 27. repeating a GAM across many factors (oc1) 28...