Moving from RPubs to Github documents
If you still follow my Twitter feed – I pity you, as it’s been rather boring of late. Consisting largely of Github commit messages, many including the words “knit to...continue reading.
Category: Rstat
Inkognito – Sequential Bayesian Identity Disclosure
We provide Bayesian decision support for revealing the identity of opponents in the board game Inkognito. This includes the use of combinatorics to deduce the likelihood of observing a particular...continue reading.
The 10 Data Science Crack Commandments
It’s the ten crack commandments, what? homie can’t tell me nothing about this code Can’t tell me nothing about these #rstats Number 1, make a function from a script. Everyone knows we’re...continue reading.
By-Group Statistical Summary in Clojure
In the previous post (https://statcompute.wordpress.com/2018/03/16/for-loop-and-map-in-clojure), I did a performance comparison between MAP and FOR loop in Clojure with a small dataset. It is interesting to see that the performance of...continue reading.
Cats are great and so is the forcats R package
Cats are great. Perhaps Hadley Wickham and Lionel Henry think so too given the wonderful choice of name for their purrr package. Hadley Wickham has also created a smartly named...continue reading.
Anova-Freak and Bayesian Hipster #rstats
I’m pleased to announce an update of my sjstats-package. New features are specifically implemented for the Anova and Bayesian statistic and summary functions. Here’s a short overview of what’s new…...continue reading.
Machine Learning Modelling in R : : Cheat Sheet
I came across this excellent article lately “Machine learning at central banks” which I decided to use as a basis for a new cheat sheet called Machine Learning Modelling in R. The...continue reading.
Power analysis for longitudinal multilevel models: powerlmm 0.2.0 is now out on CRAN
My R packge powerlmm 0.2.0 is now out on CRAN. It can be installed from CRAN https://cran.r-project.org/package=powerlmm or GitHub https://github.com/rpsychologist/powerlmm. Changes in version 0.2.0 New features Analytical power calculations now...continue reading.
Do We Really Need Dataframe in Clojure?
During my learning of Clojure, I was deeply impressed by the richness of data structures and the built-in support for concurrency, which makes it a perfect programming language for the...continue reading.
Parse CSV File with Headers in Clojure
; (defproject prj “0.1.0-SNAPSHOT” ; :dependencies [[org.clojure/clojure “1.8.0”] ; [org.clojars.bmabey/csvlib “0.3.6”] ; [ultra-csv “0.2.1”] ; [incanter “1.5.7”] ; [semantic-csv “0.2.1-alpha1”] ; [org.clojure/data.csv “0.1.4”]]) (require ‘[csvlib :…continue reading.
Speeding up Metropolis-Hastings with Rcpp
Previous posts in this series on MCMC samplers for Bayesian inference (in order of publication): Bayesian Simple Linear Regression with Gibbs Sampling in R Blocked Gibbs Sampling in R for...continue reading.
For Loop and Map in Clojure
;; DEFINE THE DATABASE (def db {:classname “org.sqlite.JDBC” :subprotocol “sqlite” :subname “/home/liuwensui/Downloads/chinook.db”}) ;; CALL PACKAGES (require ‘[clojure.java.jdbc :as j] ‘[criterium.core :as c] ‘[cloju…continue reading.
Farewell then, PubMed Commons
PubMed Commons, the NCBI’s experiment in comments for PubMed articles, has been discontinued. Thoroughly too, with all traces of it expunged from the NCBI website. Last time I wrote about...continue reading.
Extracting PDF Text with R and Creating Tidy Data
In the digital age of today, data comes in many forms. Many of the more common file types like CSV, XLSX, and plain text (TXT) are easy to access and...continue reading.
Mandalas Colored
Apriétame bien la mano, que un lucero se me escapa entre los dedos (Coda Flamenca, Extremoduro) I have the privilege of being teacher at ESTALMAT, a project run by Spanish...continue reading.
R: simple for complex tasks, complex for simple tasks
When it comes to undertaking complex data science projects, R is the preferred choice for many. Why? Because handling complex tasks is simpler in R than other comparable platforms.Regrettably, the...continue reading.
Is it time to ditch the Comparison of Means (T) Test?
For over a century, academics have been teaching the Student’s T-test and practitioners have been running it to determine if the mean values of a variable for two groups were...continue reading.
JC and the Vignettes
If that’s not a great 1960’s band name then I don’t know what is (hint: I don’t know what is). At the start of the year I set out my...continue reading.
Semiparametric Regression in R
A. INTRODUCTION When building statistical models, the goal is to define a compact and parsimonious mathematical representation of some data generating process. Many of these techniques require that one make...continue reading.
Using R in SQL Server Reporting Services (SSRS)
SQL Server Reporting services (SSRS) is an outstanding tool for creating, deploying and managing paginated, mobile, KPI reports as well as Power BI reports. Tool provides simple way to share...continue reading.
