Yesterday I found an “old” script I wrote during a morning in the last semester. I remember being a little bored and interested in the concept of Q-learning. That was...continue reading.
I’ve been experimenting for more than two months with Tensorflow, and while I find it a bit more “low level” if compared to other libraries for machine learning, I like...continue reading.
Hadley Wickham in a recent blog post mentioned that “Factors have a bad rap in R because they often turn up when you don’t want them.” I believe Factors are an...continue reading.
WASP and other flow and water quality models ask users to input multiplier and exponent values relating velocity and depth to discharge. These relationships take the form of V=aQ^b and...continue reading.
From Safari Books Online (https://www.safaribooksonline.com/blog/2016/02/10/data-science-qa/) —Recently, we were able to ask five questions of Murtaza Haider, about the new book from IBM Press called “Getting Started with Data Science: Making Se…continue reading.
In 2014, EPA documented the relative lack of nutrient data from waste water treatment plant effluents, even though development of surface water quality standards for nitrogen and phosphorus has been...continue reading.
From HuffingtonPostThe New York Times made it look so easy. Take a few courses in data science and a web-based startup will readily pay top dollars for your newly acquired skills.Since the McKinsey...continue reading.
Lately, I got the chance to play around with Shiny and Leaflet a lot – and it is really fun! So I decided to catch up on an old post...continue reading.
This is a detailed tutorial on image recognition in R using a deep convolutional neural network provided by the MXNet package. After a short post I wrote some times ago...continue reading.
Here are two papers that may be useful for researchers in psychology, linguistics, and cognitive science:Shravan Vasishth and Bruno Nicenboim. Statistical methods for linguistic research: Foundational Ideas – Part I. Language and...continue reading.
[EDIT: The function now also inludes the possibility to plot the IQR around the median. I shifted the median slightly downwards to prevent the SD and the IQR from overlapping.]I...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 PROGRAMMER’s Kay Ewbank’s reviews Getting Started with Data Science: Making Sense of Data with Analytics.By Kay EwbankIf you’ve enjoyed books such as Freakonomics or Outliers, you’ll feel at home...continue reading.
Computing platforms should be like Lego. That is, they should provide the fundamental building blocks and enable the users’ imagination to innovate. The latest issue of Stata Journal exemplifies how...continue reading.
Monte Carlo analysis is a great way to explore the impact of input variable uncertainty on the results of engineering equations, and with vector variables and distribution and sampling functions...continue reading.
This post would probably be the last in my series about merging R and ArcGIS. In August unfortunately I would have to work for real and I will not have...continue reading.
I am pleased to update you on the Data Science Boot Camp we ran at the Ted Rogers School of Management at Ryerson University in Toronto in collaboration with IBM’s...continue reading.
In this post I will introduce another toolbox I created to show the functions that can be added to ArcGIS by using R and the R-Bridge technology.In this toolbox I...continue reading.
In this post I present my third experiment with R-Bridge. The plotting toolbox is a plug-in for ArcGIS 10.3.x that allows the creation of beautiful and informative plot, with ggplot2,...continue reading.
Here are two tips I can share if you were also working on a big dataset towards a high quality heatmap:1. Don’t generate PDF using pheatmap() or heatmap.2() as (i)...continue reading.
GIS / R / R News / Shiny / Visualization
Interactive visualization of geospatial data with R Shiny
April 17, 2021
