The scatterplot matrix, known acronymically as SPLOM, is a relatively uncommon graphical tool that uses multiple scatterplots to determine the correlation (if any) between a series of variables. These scatterplots...continue reading.
Here is some updated R code from my previous post. It doesn’t throw any warnings when importing tracks with and without heart rate information. Also, it is easier to distinguish...continue reading.
So, Strava’s heatmap made quite a stir the last few weeks. I decided to give it a try myself. I wanted to create some kind of “personal heatmap” of my...continue reading.
It’s been a while since I had the opportunity to post something on music. Let’s get back to that.I got my hands on some song lyrics by a range of...continue reading.
Today I want to write about a solution to a quite specific problem. Suppose, you want to label cells in your ‘vcd’ package mosaic plots in a custom way. For...continue reading.
I’ve got a NetAtmo weather station. One can download the measurements from its web interface as a CSV file. I wanted to give time series analysis with the extraction of...continue reading.
Histograms and bar charts are almost always a part of data analysis presentation. If it is made with R ggplot package functions geom_histogram() or geom_bar() then bar chart may look like...continue reading.
When building visualizations with ggplot2 in R I decided to create specialized functions that encapsulate plotting logic for some of my creations. In this case instead of commonly used aes function...continue reading.