BiostatLEARN
Simple and clear explanations of biostatistics methods, statistical concepts and more!
I try to keep them maths-free and straight to the point, with many examples of biological applications.
Latest posts
Correlation does not imply causation
Simple explanation of what is correlation, positive and negative correlation, and the correlation coefficient r.In this post I will try to give you a simple and practical explanation of correlation. Correlation is one of the most used statistical techniques. However,...
Principal Component Analysis (PCA) simply explained
In this post I will try to give you a simple and practical explanation on what is Principal Component Analysis and how to use it to visualise your biological data. Principal Component Analysis, or PCA, is a widely used technique to visualise multidimensional datasets....
How to interpret a volcano plot
What is a volcano plot?Imagine you are carrying out an RNAseq experiment. You have a group of cells A and a group of cells B. Group B was treated with a drug. Now you want to see what effect the drug has in gene expression. Does the drug cause some genes to be...


Correlation does not imply causation
Simple explanation of what is correlation, positive and negative correlation, and the correlation coefficient r.In this post I will try to give you a simple and practical explanation of correlation. Correlation is one of the most used statistical techniques. However,...
Principal Component Analysis (PCA) simply explained
In this post I will try to give you a simple and practical explanation on what is Principal Component Analysis and how to use it to visualise your biological data. Principal Component Analysis, or PCA, is a widely used technique to visualise multidimensional datasets....
How to interpret a volcano plot
What is a volcano plot?Imagine you are carrying out an RNAseq experiment. You have a group of cells A and a group of cells B. Group B was treated with a drug. Now you want to see what effect the drug has in gene expression. Does the drug cause some genes to be...