A two-way ANOVA test is a statistical test used to determine the effect of two nominal predictor variables on a continuous outcome variable. A two-way ANOVA tests the effect of two independent variables on a dependent variable. This blog post contains… The post Two-Way ANOVA using R appeared first on ...

Cluster analysis is a statistical technique that groups similar observations into clusters based on their characteristics. It is a statistical method of processing data. A good cluster analysis produces high-quality clusters with high inter-class correlation. This blogpost contains the following… The post Cluster analysis using R appeared first on Statistical ...

R Consortium talks to Harvey Lieberman on their growth both pre and post COVID. They have adapted in a way that promotes R in Pharma as well as allowing them... The post R in Pharma works to allow an open inclusive environment appeared first on R Consortium.

Restricted Boltzmann Machine is used to detect patterns in data, in an unsupervised way. If you haven’t read the previous posts yet, you can read them by clicking the below links. Introduction to Machine Learning with TensorFlow »Introduct...

Fixed width files? What are those?

Fixed width files? What are those? Well, imagine your entire dataframe/ tibble/ data.table is in a single column. That’s it, over 200 columns, in one. Each row is a very long string. Sounds fun right? Ideally, there would be delimiters ...

How can you be sure that the contents of an email haven’t been tampered with? The best approach would probably be to have a digital signature on each component of the message. Perhaps I’ll look at integrating that into {emayili} some time in the future. However, today I’...

A puzzle from The Riddler this week returning to the ranking of climbing competitors in Tokyo. And asking for the maximin score, that is, the worst possible absolute score guaranteeing victory. In the case of eight competitors, a random search for a maximin over 10⁶ draws leads to a value of 48=1...

During the pandemic, we have seen a lot of growth within the R community. Recently, R Consortium talked to Emilio López Cano, president of R Hispano, about the growth of... The post R Hispano talks about the growth of local groups appeared first on R Consortium.

Recurrent Neural Networks, This is a follow-up to one of our previous posts, which you can read here if you missed it. Let’s look into Recurrent Neural Networks and the different types of issues that they may handle. RNN is a deep l...

Intro Early last year I posted on my blog an attempt to recreate a Yahoo Finance graphic. Now, thanks to the work of Dr Paul Murrell on the grid and gggrid packages, I have the tools to polish this one off. Reference Article Here is a streamlined ...

The concept of “wide data” is relative. In some domains 100 columns is considered “wide”, while in others that’s perfectly normal and you’d need to have thousands (or tens of thousands!) of columns for it to be considered even remotely “wide”. The data that we work with at Fathom ...

Introduction Simple linear regression: reminder Principle Equation Interpretations of coefficients \(\widehat\beta\) Significance of the relationship Correlation does not imply causation Conditions of application Visualizations Multiple linear regression Principle Equation Interpretations of coefficients \(\widehat\beta\) Conditions of application How to choose a good linear model? \(P\)-value associated to the ...

Novel Algebraic Approaches to Maximum Likelihood Estimation The seventh “One World webinar” organized by YoungStatS will take place on November 17th, 2021. Maximum likelihood estimation (MLE) is a tool in data analysis to estimate a probability di...