What happens when you need a particular type of randomization? Overview of random number generation in R R has at least 20 random number generator functions. Each uses a specific probability distribution to create the numbers. All require you to specify the number of random numbers you want (the above image shows 200). …

What is a p-value? If your experiment needs statistics, you ought to have done a better experiment. — Ernest Rutherford The use of p-values in research is very common. Peer reviewed journal articles are chock-full of them. It seems like every scientist and their salivating dog uses them. Okay, without looking up the answer: …

Warning: contains graph violence — Graphs are used to present information in a visual, summary format. They can be used instead of tables. Used successfully, graphs reduce the amount and complexity of data used in sentences. Hopefully this article gives you extra tools for deciding what graphs (not) to use. The person who has worked…

I came to data science and statistics as a failure. After finishing my master’s degree in psychology I applied for about 30 psychology-related jobs without success. I didn’t even make it to the interview stage. I then saw a job advertisement for a research officer, and that started a 21-year…