With this post I would like to talk again about R-Bridge, which allows a direct communication between ArcGIS and R.In the previous post, I presented a very simple application of...continue reading.
Last year at the ESRI User Conference in San Diego, there was an announcement of an initiative to bridge ArcGIS and R. This became reality I think early this year...continue reading.
For as long as I have been working with water data, I wanted to construct a line graph superimposed on a box and whisker plot where the boxes show the...continue reading.
[This post is a draft for Table.co technical blog]Graphs can be used as proper data structure in many applications from marketing data to social networks. It is amazing how representing...continue reading.
[Scroll to graphic below if math doesn’t render for you]Thanks to Mark Andrews for correcting some crucial typos (I hope I got it right this time!). Thanks also to Andrew...continue reading.
Last year Packt asked me to develop a video course to teach various techniques of data visualization in R. Since I love the idea of video courses and tutorials, and...continue reading.
If you already found package extrafont then you probably found how to load and use Windows fonts in R visualizations. But just in case, everything to get started with extrafont is found here and...continue reading.
This article will take us step-by-step over incremental changes to produce a bubble chart using ggplot2 that looks like this:We’ll encounter the plot above once again at the very end after explaining...continue reading.
High winds in the Delaware Estuary region caused a “blowout” tide in early April 2016, where observed water surface elevations were much lower than those predicted via harmonic constituents. Extreme...continue reading.
The Delaware River experienced some high flow in late February 2016, providing an opportunity for an interesting animated graph of river response.This plot was developed using data from the USGS...continue reading.
Repeated Measurements AnalysisRepeated measurements analysis, and in particular longitudinal data analysis, is one of the two most frequently used types of analysis in my field (Biostatistics) – the other being...continue reading.
What are Dynamic PredictionsIn this post we will explain the concept of dynamic predictions and illustrate how these can be computed using the framework of joint models for longitudinal and...continue reading.
Tips below are based on the lessons I learnt from making mistakes during my years of research. It’s purely personal opinion. Order doesn’t mean anything. If you think I should...continue reading.
While working on new graph functions for my package toaster I had to pick from the R packages that represent graphs. The choice was between network and graph objects from the network and igraph correspondingly – …continue reading.
In this earlier post, I analyzed tidal water surface elevation data from the NOAA PORTS system from both the Delaware Estuary and the Chesapeake Bay, showing how the two systems...continue reading.
R is great, and you can do a LOT OF stuff with it.However, sometimes you want to do really basic stuff with huge or a lot of files. At work,...continue reading.
In a previous post I showed an animated age structure diagram depicting output from a simple population model written in Excel. Here is another version of that model written in...continue reading.
It’s a pain to design statistics exercises each semester, and because students from previous share old exercises with the new incoming students, it’s hard to design simple exercises that students...continue reading.
Earlier this month, IBM Press and Pearson have published my book titled: Getting Started with Data Science: Making Sense of Data with Analytics. You can download sample pages, including a...continue reading.
This Wednesday’s Powerball grand prize already climbed up to $1.5 BILLION. If you choose to cash out, it would be $930 million. And it keeps increasing… So, what’s the odd...continue reading.
GIS / R / R News / Shiny / Visualization
Interactive visualization of geospatial data with R Shiny
April 17, 2021
