options(contrasts=c("contr.sum","contr.poly")) #sets deviation (or sum-to-zero) coding for definition of effects, use before running any anovas or regressions #import data#### library(car) #contains ...
The main **motivation** for this community contribution project is to provide a tutorial of a few useful visualization tools in the process of the analysis of variances, a common topic that ...
Analysis of variance (ANOVA) is a usual way for analysing experiments. However, depending on the design and/or the analysis scheme, it can be a hard task. ExpDes, acronym for Experimental Designs, is ...
The goal of this short course is to first explain the services provided by the Laboratory for Interdisciplinary Statistical Analysis (LISA) and second to offer t-test and ANOVA (Analysis of Variance) ...
Analysis of variance (ANOVA) is the standard procedure for statistical inference in factorial designs. Typically, ANOVAs are executed using frequentist statistics, where p-values determine statistical ...
isixsigma on MSN
Understanding the Basics of ANOVA and Dunnett’s 1-way ANOVA
When testing whether the means of more than 2 groups are statistically different, you could use a one-way ANOVA. But if you ...
This short course provides an overview of statistical analyses useful for comparing the means for one or more samples. The statistical training will include the discussion of the one sample t-test, ...
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