## Meta analysis of multiple multi-omics data… Oy Vey

April 25, 2019
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TL;DR tidy tibbles can contain non-atomic classes. This is a proof of concept demonstration for such implementation with S4 object-oriented classes, for meta-analysis of complex genomic data. Motivation In my previous post I reviewed the evo...

## I walk the (train) line – part trois – Dijkstra’s revenge

(TL;DR: Author algorithmically confirms what he already knows - that there is a way to get from Newtown Station to a tasty burger. Shortest path from Newtown to tasty...

## A Detailed Guide to the ggplot Scatter Plot in R

April 24, 2019
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When it comes to data visualization, flashy graphs can be fun. But if you're trying to convey information, especially to a broad audience, flashy isn't always the way to...

## Google’s Eigenvector… or how a Random Surfer finds the most relevant Webpages

April 24, 2019
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Like most people you will have used a search engine lately, like Google. But have you ever thought about how it manages to give you the most fitting results?...

## How to easily generate a perfectly normal distribution

April 23, 2019
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Many times, for instance when teaching, I needed to quickly and simply generate a perfectly normally distributed sample to illustrate or show some of its characteristics. This is now very...

## How to easily generate a perfectly normal distribution

April 23, 2019
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Many times, for instance when teaching, I needed to quickly and simply generate a perfectly normally distributed sample to illustrate or show some of its characteristics. This is now very...

## Join, split, and compress PDF files with pdftools

Last month we released a new version of pdftools and a new companion package qpdf for working with pdf files in R. This release introduces the ability to perform...

## 77th Tokyo.R Users Meetup Roundup!

April 23, 2019
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As the sakura bloomed in Tokyo, another TokyoR User Meetup...

## Probability of winning a best-of-7 series

April 22, 2019
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$Probability of winning a best-of-7 series$

The NBA playoffs are in full swing! A total of 16 teams are competing in a playoff-format competition, with the winner of each best-of-7 series moving on to the...

## Comparing Point-and-Click Front Ends for R

April 22, 2019
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Now that I've completed seven detailed reviews of Graphical User Interfaces (GUIs) for R, let's try to compare them. It's easy enough to count their features and plot them,...

## Le Monde puzzle [#1094]

April 22, 2019
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A rather blah number Le Monde mathematical puzzle: Find all integer multiples of 11111 with exactly one occurrence of each decimal digit.. Which I solved by brute force, by...

## Using R/exams for Written Exams in Finance Classes

April 22, 2019
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Experiences with using R/exams for written exams in finance classes with a moderate number of students at Texas A&M International University (TAMIU). ...

## Practical Data Science with R Book Update (April 2019)

April 22, 2019
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I thought I would give a personal update on our book: Practical Data Science with R 2nd edition; Zumel, Mount; Manning 2019. The second edition should be fully available...

April 22, 2019
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Today I am happy to announce a new free course: Help Your Team Learn R! Over the last few years I’ve helped a number of data teams train their...

## India has 100k records on iNaturalist

April 21, 2019
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Biodiversity citizen scientists use iNaturalist to post their observations with photographs. The observations are then curated there by crowd-sourcing the identifications and other trait related aspects too. The data...

## Reproducible Environments

April 21, 2019
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Great data science work should be reproducible. The ability to repeat experiments is part of the foundation for all science, and reproducible work is also critical for business applications. Team collaboration,...

## survivalists [a Riddler’s riddle]

April 21, 2019
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$survivalists [a Riddler’s riddle]$

A neat question from The Riddler on a multi-probability survival rate: Nine processes are running in a loop with fixed survivals rates .99,….,.91. What is the probability that the...

## Binning with Weights

April 21, 2019
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After working on the MOB package, I received requests from multiple users if I can write a binning function that takes the weighting scheme into consideration. It is a...

## Familiarisation with the Australian Election Study by @ellis2013nz

April 21, 2019
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The Australian Election Study is an impressive long term research project that has collected the attitudes and behaviours of a sample of individual voters after each Australian federal election...

## FizzBuzz in R and Python

April 21, 2019
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In this post, we will solve a simple problem (called "FizzBuzz") that is asked by some employers in data scientist job interviews. The question seeks to ascertain the applicant's...

## Process Mining (Part 2/3): More on bupaR package

April 20, 2019
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Recap In the last post, the discipline of event log and process mining were defined. The bupaR package was introduced as a technique to do process mining in R. Objectives for...

## Before you take my DataCamp course please consider this info

April 20, 2019
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Today, I am finally getting around to writing this very sad blog post: Before you take my DataCamp course please consider the following information about the sexual harassment scandal...

## Batch Deployment of WoE Transformations

April 20, 2019
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After wrapping up the function batch_woe() today with the purpose to allow users to apply WoE transformations to many independent variables simultaneously, I have completed the development of major...

## Styling DataTables

April 19, 2019
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Most of the shiny apps have tables as the primary component. Now lets say you want to prettify your app and style the tables. All you need understand how...

## Quick Example of Latent Profile Analysis in R

April 19, 2019
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Latent Profile Analysis (LPA) tries to identify clusters of individuals (i.e., latent profiles) based on responses to a series of continuous variables (i.e., indicators). LPA assumes that there are...

## Control Charts Another Package

April 19, 2019
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I got an email from Alex Zanidean, who runs the xmrr package “You might enjoy my package xmrr for similar charts – but mine recalculate the bounds automatically” and if...

## Happy EasteR! Let’s find some eggs…

April 19, 2019
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It's Easter Time! Let's find some eggs... Hi there! Yes, it's the most Easterful time of the year again. For some of us a sacret time, for others mainly an...

## ODSC East 2019 Talks to Expand and Apply R Skills

R programmers are not necessary data scientists, but rather software engineers. We have an entirely new multitrack focus area that helps engineers learn AI skills – AI for Engineers....

## tint 0.1.2: Some cleanups

April 19, 2019
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A new version 0.1.2 of the tint package is arriving at CRAN as I write this. It follows the recent 0.1.1 release which included two fabulous new vignettes...