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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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How to use weights in multivariate linear regression in R with lm?

I've got a linear regression that looks like: multivariateModel = lm(cbind(y1, y2, y3)~., data=temperature) I need to do two things with this, which I've found difficult to do. First is to extract the variances, and right now I'm using…
That One Dude Mike
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How to create a regression with results from an experiment repeated three times using all three outcomes for the Y value in lm/glm?

This dataset has the results of an experiment repeated three times. How do I fit a regression to a 3 column matrix Y for these three columns of data in R if these columns were named y1, y2, y3 in the dataframe I'm using? I'm struggling to understand…
That One Dude Mike
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Unable to import factor analyzer Spyder 3.3.6 Python via Conda

I'm attempting to import factor_analyzer into Spyder and am receiving: ModuleNotFoundError: No module named 'factor_analyzer' from factor_analyzer import FactorAnalyzer AND pip install factor_analyzer Results: from factor_analyzer import…
Joshua Paiva
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Multivariate Regression in Python

I want to perform a multivariate linear regression in Python based on multiple arrays of dependent data and multiple independent ones. I've seen a lot of MULTIPLE linear regressions, with multiple independent input and almost everyone is thinking…
Karolina Andruszkiewicz
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lme4 for Multivariate Mixed Models - Never end up converging/finishing executing

I am building a multivariate mixed model using LME4 (as I find it more simple to understand the output). However I can't get it to converge, the code takes forever to run. I started by melting 18 columns into 1 (trait). Then I tried to create a…
Vincent Nadon
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Fixing floating point error in R - error with MDMR package displaying approximate inequality rather than precise answer

I'm using the latest version of the MDMR package in R to analyze whether there is a significant relationship between a set of independent and dependent variables. However, when I execute something like the…
AldehydeDeva
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What are some R packages for dealing with multivariate time series for data sets with multiple observations?

I am trying to figure out how to approach a data problem that includes observations of multiple equipment units' pressure and temperature measures. The measures are available for a few years as daily or nearly daily values. This seems like a time…
Anna Y.
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(MANOVA.RM) RM is returning error: The subject variable is not found

I am trying to run a repeated measures MANOVA using the MANOVA.RM package. My data looks like this: Group Subject Trial Measure_1 Measure_2 1 1 1 44 15 1 2 1 78 17 2 3 …
Glenn Lematta
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Multivariate regression libraries in fortran

I find several multivariate regression and curve fitting libraries developed in (a) C/C++ eg. Dlib, Dakota, (b) python has eg.scipy.interpolate. For fortran I found INTERP but I want to know if there are actively developed and maintained…
newkid
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PLS in R: Model training and predicting values with two Y variables

I' ve like to model training and predicting values using PLS model for more than one Y variables, but I have some problems when I try this approach, in my code below: #First simulate some data set.seed(123) bands=20 data <-…
Leprechault
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MANCOVA with categorical data

By doing an experiment, I would like to analyze the effect of 3 categorical independent variables (with 2 levels each) on three constructs measured with ordinal variables. I also have 2 covariates (with ordinal variables). Among the findings, I…
user10489057
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Generate multivariate normal data with unequal sample sizes

I would like to generate multivariate random data manipulating the sample size and variance using MASS::mvrnorm (or, as the case may prove to be, rnorm). This is fairly straightforward, however, the trick is that I intend to simulate a statistic…
MeC
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Split Testing and Optimization Techniques

For example we have 5 landing pages, running under the same URL, being served randomly based on their weightage. What I want is to check which page is converting more and increase it's weightage automatically so that it get served more. This is the…
Saim
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Is there an easy to use and well maintained split & multivariate testing library for PHP?

Google Web Optimizer is great, but I don't like the idea of depending upon JavaScript for split testing let alone multivariate testing. I'm looking for a fairly simple and well maintained testing library for php. Does anyone know if a testing…
Kin
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R - Explain variation between groups in panel data

I have a panel data set as follows: Year Industry FDI RW TFP IY CY GDP LP IR ER PS 1998 AGR xx xx xx xx xx xx xx 1998 MAN xx xx xx xx xx xx xx 1998 NTR xx …
Restemayer
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