This Thursday at 10am I will be doing a live event with John Sonmez, the founder of SimpleProgrammer. The presentation is titled Blogging for Data Scientists. John... The post Live Event: Blogging for Data Scientists appeared first on AriLamstein.com.

Sometimes people create csv files that are just too huge to upload them into your R session while most of the times you just need a subset of this data set. Recently I tapped into this problem and first I tried to import the whole file with functions like fread ...

@drsimonj here to show you how to use xgboost (extreme gradient boosting) models in pipelearner.  Why a post on xgboost and pipelearner? xgboost is one of the most powerful machine-learning libraries, so there’s a good reason to use it. pipelearner helps to create machine-learning pipelines that make it easy ...

A few years ago I started to use the R programming language more intensive while writing my master thesis. I used the wonderful arules package for mining association rules and frequent item sets from Michael Hahsler and others. I used this package in the field of forensic accounting. Forensic data ...

My sjPlot-package was just updated on CRAN with some – as I think – useful new features. First, I have added some vignettes to the package (based on the existing online-documentation) that cover some core features and principles of the sjPlot-package, so you have direct access to these manuals within R. The ...

Trading using R on Interactive Brokers The session would be covering the following aspects: Installing R-studio IDE Reference sheet for the IBroker Package – https://cran.r-project.org/web/packages/IBrokers/IBrokers.pdf TWS configuration Viewing account information details in R Downloading historical data in R Printing real-time data on R ...

I made a promise to someone that my next blog would be about stringi vs stringr and I intend to keep said promise. stringr and stringi do “string operations”: find, replace, match, extract, convert, transform, etc. The stringr package is now part of the tidyverse and is 100% focused on string ...

One of the distinctive features of the R platform is how explicit and user controllable everything is. This allows the style of use of R to evolve fairly rapidly. I will discuss this and end with some new notations, methods, and tools I am nominating for inclusion into your view ...

Russia is sadly notorious for its ridiculously high adult male mortality. According to Human Mortality Database data (2010), the probability for a Russian men to survive from 20 to 60 was just 0.64 1. For women the probability is 0.87. This huge gender disproportion in mortality results in a peculiar sex ratio profile (see my old ...

Today, I want to share my analysis of the World Gender Statistics dataset. Last week I already introduced my Shiny app, where you can explore 160 measurements for 164 countries over 56 years. This week I’ve included a statistical analysis of these c...