Statistics Sunday: Creating a Stacked Bar Chart for Rank Data
Stacked Bar Chart for Rank Data At work on Friday, I was trying to figure out the best way to display some rank data. What I had were rankings from...continue reading.
Author: Sara
Rcrastinate is moving.
Hi all, this is just an announcement.I am moving Rcrastinate to a blogdown-based solution and am therefore leaving blogger.com. If you’re interested in the new setup and how you could...continue reading.
10 years of playback history on Last.FM: “Just sit back and listen”
Alright, seems like this is developing into a blog where I am increasingly investigating my own music listening habits.Recently, I’ve come across the analyzelastfm package by Sebastian Wolf. I used...continue reading.
Linguistic Signals of Album Quality: A Predictive Analysis of Pitchfork Review Scores Using Quanteda
In this post we will return to the Pitchfork music review data, parts of which I’ve analyzed in previous posts. Our goal here will be to use text mining and...continue reading.
Displaying our “R – Quality Control Individual Range Chart Made Nice” inside a Java web App using AJAX – How To.
Prerequisites:What you should have installed:Java, it can be OpenJDK, you can get it from here: https://github.com/ojdkbuild/ojdkbuildTomcat, any version from 8 up.Eclipse EE: Eclipse IDE for Java EE.Spring Tools Suite For Eclipse: https://sp…continue reading.
Yet Another Tutorial on Variational Auto Encoder – but in Pytorch 1.0
VAE is a generative model that leverages Neural Network as function approximator to model a continuous latent variable with intractable posterior distribution. If you are interested in the theory of...continue reading.
My Selected papers from NIPS 2018 (Neurips’18)
I attended NIPS’18 in Montreal and here is the list of papers that I found interesting from the talks and poster sessions:Generatives And Adverserial:GILBO: One Metric to Measure Them AllOn...continue reading.
This dance, it’s like a weapon: Radiohead’s and Beck’s danceability, valence, popularity, and more from the LastFM and Spotify APIs
Giddy up, giddy it upWanna move into a fool’s gold roomWith my pulse on the animal jewelsOf the rules that you choose to use to get looseWith the luminous movesBored...continue reading.
Finally, You Can Plot H2O Decision Trees in R
Creating and plotting decision trees (like one below) for the models created in H2O will be main objective of this post:Figure 1. Decision Tree Visualization in RDecision Trees with H2OWith...continue reading.
Using Recurrent Neural Nets to Generate Band Names
In this post we will return to the Pitchfork music data and use recurrent neural networks (a “deep learning” technique) to automatically generate band names.The DataFor this analysis, we will...continue reading.
Statistics Sunday: Introduction to Regular Expressions
In my last Statistics Sunday post, I briefly mentioned the concept of regular expressions, also known as regex (though note that in some contexts, these refer to different things -...continue reading.
Statistics Sunday: Reading and Creating a Data Frame with Multiple Text Files
First Statistics Sunday in far too long! It’s going to be a short one, but it describes a great trick I learned recently while completing a time study for our...continue reading.
R – Quality Control Individual Range Chart Made Nice.
In R we have the qcc package but charts are not very nice, specially if you want to put your chart in a HTML file.Here I describe the process of...continue reading.
Multilevel Modeling Solves the Multiple Comparison Problem: An Example with R
Multiple comparisons of group-level means is a tricky problem in statistical inference. A standard practice is to adjust the threshold for statistical significance according to the number of pairwise tests...continue reading.
Statistics Sunday: What Fast Food Can Tell Us About a Community and the World
Two statistical indices crossed my inbox in the last week, both of which use fast food restaurants to measure a concept indirectly.First up, in the wake of recent hurricanes, is...continue reading.
Making Art in R
Amazing artworks people made in R:See their source code and more arts at:http://www.r-graph-gallery.com/286-antonio-sanchez-dataart/continue reading.
Statistics Sunday: Some Psychometric Tricks in R
Statistics Sunday: Some Psychometrics Tricks in R It’s been a long time since I’ve posted a Statistics Sunday post! Now that I’m moved out of my apartment and into my...continue reading.
Animated River Flow Revisited
My prior post on animated flow in the Delaware River contained the last work I performed on my previous lap top just before it gave up the ghost. When a...continue reading.
A question and an answer about recoding several factors simultaneously in R
Data manipulation is a breeze with amazing packages like plyr and dplyr. Recoding factors, which could prove to be a daunting task especially for variables that have many categories, can...continue reading.
PCA plot with fill, color, and shape all together
When I plotted the PCA results (e.g. scatter plot for PC1 and PC2) and was about to annotate the dataset with different covariates (e.g. gender, diagnosis, and ethic group), I...continue reading.
