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Questions tagged [multivariate-testing]

Multivariate testing (aka multi-variable testing) is hypothesis testing in the context of multivariate statistics

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PERMANOVA multivariate spread among groups is not similar to variance homogeneity ANOVA

I try to understand a PERMANOVA assumtption that is multivariate spread among groups is similar to variance homogeneity in univariate ANOVA, for this I make a R code and I don't find this results, why? My code: library(vegan) # Four similar…
Leprechault
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Forecasting for DCC Copula GARCH model in R

I'm trying to forecast the Copula Garch Model. I have tried to use the dccforecast function with the cGARCHfit but it turns out to be error saying that there is no applicable method for 'dccforecast' applied to an object of class cGARCHfit. So how…
NSAA
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Regression of Continuous variable on nominal variables

Using JMP software, if my dependent variable on the y-axis is a continuous variable "Revenue from Movie" and the predictors are 4 categorical variables ( 1= Action, 2=Comedy, 3 = Kids, 4=Other) then I find that the JMP software always leaves one of…
Utpal Mattoo
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MRT function [1] "error code = 0"

When I make my MRT, I got two errors: [1] "error code = 0" and Error in indval.default(Ynode, clustering = clustnode, numitr = 1000) : All species must occur in at least one plot. Does anyone have an idea of why? I checked and all my…
Stephanie Lefebvre-Ruel
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multivariate student-t regression

I want to do a multivariate regression in R (where each output sample is a vector, instead of a number), which I know can be handled using the lm() function; however, the multivariate output data is not necessarily Normally distributed, so I'm…
Golsheed B
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Linear multivariate regression in R

I want to model that a factory takes an input of, say, x tonnes of raw material, which is then processed. In the first step waste materials are removed, and a product P1 is created. For the "rest" of the material, it is processed once again and…
Cenderze
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Does a univariate ARIMA model become mulitvariate when I add exogenous variabels to the function? I did this in r with the function xreg

Does a univariate ARIMA model become mulitvariate when I add exogenous variabels to the function? I did this in r with the function xreg. For example: fitwithtwoexfactors = arima(futoilrtn,order=c(0,0,1), xreg=exogenous) exogenous is a data frame…
user3553260
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Phylogenetic MANOVA in R?

Does anyone know of a package or method in R of carrying out a MANOVA whilst controlling for phylogenetic non-independence? Thank you!
Sarah
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R Query: Creating Dummy Variables from a Categorical Variable

Hello Stack Overflow people, I have spent a while searching for a solution to my problem, but not found anything, so thought I would post. Basically I have a dataset of 196 countries listed in alphabetical order. One of the variables assigns a…
user2292364
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php mt_rand and google analytics

I've been using mt_rand(1,6), which, depending on the random integer generated, a different CSS style would be used (for MVT). Is there any reason, in terms of the PHP function, why Analytics would say there is a drastic (>5% in some cases)…
d-_-b
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What rendering should i use for Multivariate Testing between Sublayouts in Sitecore

I Have numbers of sublayouts with them I want perform MVT in Sitecore .So i am not able to find which rendering should i use to perform the test . I have taken reference of the article Multivariate Testing for Sublayouts in Sitecore But i want…
Shailesh
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Add TestLab Navigation in Control Property Window in SiteCore

I added a test in Sitecore test lab named HeroImage . I added variable and values for the test. Then i go on the page editor where i want add the test .Then i right click the control property window . In Control Property Window i do not find…
Shailesh
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Google Site Optimizer not tracking cross-domain conversions

I've set up three GWO multivariate tests across two domains. I've got the landing page set up correctly, and it's tracking visitors for all three tests, but conversions aren't being recorded for any of them. I've followed the instructions Google…
jeffbyrnes
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Multivariate test with a html5 mobile app

What is the best strategy to implement a html5 based mobile app for iOS / Android that can allow multivariate testing? Is it a good idea to have the html A/B files on the server and deliver them on-demand or is there a better strategy to avoid…
gemini
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Sandwich method (using 'clubSandwich' package) for estimating 'lme' (nlme package in R) model

I encountered some error that I can't explain when I'm trying to use the vcovCR function from the clubSandwich package that's applied to a lme model estimating a multivariate multilevel model (i.e., mixed-effect model). I have been trying to fit a…
ShawnSun
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