r-bloggers – Página: 2

Data Preparation – Part I

Posted on outubro 31, 2013outubro 26, 2015 by Flavio Barros

The R language provides tools for modeling and visualization, but is still an excellent tool for handling/preparing data. As C++ or python, there is some tricks that bring performance, make the code clean or both, but especially with R these choices can have a huge impact on performance and the “size” of your code. A seasoned R user can manage this effectively, but this can be a headache to a new user. SO, in this…

ANOVA and Tukey’s test on R

Posted on junho 13, 2013janeiro 17, 2017 by Flavio Barros

OBS: This is a full translation of a portuguese version. In many different types of experiments, with one or more treatments, one of the most widely used statistical methods is analysis of variance or simply ANOVA . The simplest ANOVA can be called “one way” or “single-classification” and involves the analysis of data sampled from more then one population or data from experiments with more than two treatments. It’s not my intent to study in…

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