Data comes with a price. Accuracy comes with an even greater price. And the two together can demand enormous resources. That’s why it is important to achieve the greatest efficiency in your research process and make use of any tools that can help you.  This is particularly true if ...

The recommended way to figure out the best parameters to use in stacks for denovo RAD-seq analysis is to test parameter combinations for M and n. (Paris et al. 2017, Rochette and Catchen 2017). The authors of stacks recommend testing M and n from 1 to 9 and then visualizing the distribution of loci ...

In a previous post, I have introduced the airquality data set in order to demonstrate how linear models are interpreted. In this post, I will start with a basic linear model and, from there, try to find a linear model with a better fit. Data preprocessing Since the airquality data ...

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Real-time computation (or estimation) of the “probability to win” is difficult. We’ve seem that in soccer games, in elections… but actually, as a professor, I see that frequently when I grade my students. Consider a classical multiple choice exam. After each question, imagine that you try to compute the ...

UI Update — DatazarAs your projects get more and more files added to it, keeping track of your datasets and analysis can become tedious. We’ve updated your project file list so you can see what type of files you have in your project before you ...

If you need data about the American populace, there's no source more canonical than the US Census Bureau. The bureau publishes a wide range of public sets, and not just from the main Census conducted every 10 years: there are more than 100 additional surveys and programs published as well. To help ...

Moving predictive machine learning algorithms into large-scale production environments can present many challenges. For example, problems arise when attempting to calculate prediction probabilities (“scores”) for many thousands of subjects using many thousands of features located on remote databases. xgboost (docs), a popular algorithm for classification and regression, and the model ...

I wrote a post about getting Magento 2 data to R using REST API last year. Now I provide more examples of use and a wrapper over API that you can re-use to get data from Magento 2 to R in a bit more convenient way. Prerequisites Magento 2 I… The post R ...