From zero to 3D with kernel density
Obtaining data from publicly accessible databases, cleaning it up, and creating 3D density maps has become quite popular lately. In this post, I will explore...
Posts by Year
2023
2022
Rasterizing vector data in Python with OGR/GDAL
In this post I will describe a simple tool to rasterize data. There are plenty of rasterization tools in GDAL, QGIS and other GIS that produce excellent resu...
How I recreated the Ptolemy’s map with real elevation data
In this post, I’ll describe the process I used to create the Ptolemy 3D map. Although I have aimed this tutorial at a beginner level, it still hinges on GIS ...
2021
Quantile plot
This post describes a simple quantile plot with count data. I was working on a dataset with count data and wanted to make a quick plot to check the trend of ...
Eat Your Data!
If you have ever found yourself in a situation where you didn’t know what to do next with the data you have in hands, then there is a very high probability t...
Simple simulation of life with JS
There is no direction or intent in evolution. However, an idea that evolution has a goal towards some sense of perfection seems quite prevalent on the societ...
Interactive sunburst plot of the distribution areas of land mammals
I have decided to explore the D3.js for generating plots. This library allows to generate a great variety of plots (see the gallery) and to add interactive f...
2020
Georeferencing data from a digitized map in R
A crucial step we often face in a beginning of a study is data gathering. We either go to the field, dig into museum’s collections, search literature, naviga...
Plotting 4 variables in a single plot
Visualizing the relation between two variables using a simple plot is a common task. When we have many variables, we often try to reduce dimensionality first...
Applications of Phylin (Part 3 of 3)
This is the last post of a series of 3 dedicated to phylin. The idea was to show different uses of phylin that would go beyond the typical application of the...
The Game of Life
The Conway’s Game of Life always fascinated me. Just some apparently living squares that could remain alive or die accordingly to just a few rules. In fact, ...
Applications of Phylin (Part 2 of 3)
The previous post started a series of 3 posts dedicated to the package that I have developed with my colleagues. After using 3 dimensional distance matrices,...
Applications of Phylin (Part 1 of 3)
Last September I was invited to make a post on the Molecular Ecology Spotlight. This was a small post to highlight some of the main features of the phylin R ...
Converting QGIS layer to kmz
I have developed layer2kmz plug-in for QGIS that allows to convert a layer in QGIS to kmz format. The advantage of this plugin over other translations to kml...