R statistical programming related stuff
Here you will learn how to create scatter plots in R. In this post we will, focus on ggplot2, from the tidyverse, among other packages to learn how to create the plots, add text, change color, group, and a regression line.
How to Make a Scatter Plot in R with Ggplot2 Read More »
In this tutorial, we will learn how to work with Excel files in R statistical programming environment. It will provide an overview of how to use R to load xlsx files and write spreadsheets to Excel.
R Excel Tutorial: How to Read and Write xlsx files in R Read More »
Learn how to use Binder, mybinder, git, and GitHub to make your R statistical analysis and visualization reproducible for other researchers.
How to Use Binder and R for Reproducible Research Read More »
Here you will learn how to conduct repeated measures Analysis of Variance (ANOVA) in R and Python. More specifically, you will learn how to use the r-package afex and the Python package pingouin to carry out ANOVA.
Repeated Measures ANOVA in R and Python using afex & pingouin Read More »
Good resources for learning R as a Psychologist are hard to find. By that, I mean that there are so many great sites and blogs to learn R. Thus, it may be hard to find learning resources that target Psychology researchers. Outline The structure of this post is as follows. First, we start by getting
R Resources for Psychologists Read More »
R is a free and open-source statistical programming environment. Being open-source and free it has a large and helpful online community (for instance, see StackOverflow). When I went from carrying out analysis in SPSS to do them in R, I searched for good books targeted to Psychologists. In this post, you will find four great
R books for Psychologists Read More »
Do you also find it time-consuming to make your manuscripts follow American Psychological Associations (APA) guidelines? Have you searched the internet for a good .docx/.doc APA template? After reading this post, you might not have to search anymore. Papaja is an r-package that makes your manuscript conform to APA guidelines! In this post, I will
Papaja – APA manuscripts made easy Read More »
In this tutorial, you will learn how to do reverse scoring in R. Specifically, we will use 1) base R to reverse selected variables (e.g., questionnaire items), and 2) we will use the Psych package. Reverse scoring Many instruments (e.g., questionnaires) contain items phrased so that a strong agreement indicates something negative (e.g., “When there
Reverse Scoring using R Statistical Environment Read More »