# Monthly Archives: November 2016

## elasticsearchr – a Lightweight Elasticsearch Client for R

November 28, 2016
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elasticsearchr: a Lightweight Elasticsearch Client for R Elasticsearch is a distributed NoSQL document store search-engine and column-oriented database, whose fast (near real-time) reads and powerful aggregation engine make it an excellent choice as an ‘analytics database’ for R&D, production-use or … Continue reading →

## Bill and Ted Make the best out of a Shi… Stata situation: Rstudio + Rstata + Stata

November 28, 2016
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After rewatching the thanksgiving classic, Bill and Ted’s Excellent Adventure, it reminded me of the history of #Rstats and its current status as the defacto software for general data programming. The most excellent thing about R, is the literate programming options you have. As a data analyst, you are Bill S. Preston Esquire (or Ted

## Data frame exercises Vol. 2

November 28, 2016
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Answers to the exercises are available here. Exercise 1 Consider two vectors: x=seq(1,43,along.with=Id) y=seq(-20,0,along.with=Id) Create a data.frame df: __df Id Letter x y 1 1 a 1.000000 -20.000000 2 1 b 4.818182 -18.181818 3 1 c 8.636364 -16.363636 4 2 a 12.454545 -14.545455 5

## A heat map of Divvy bike riders in Chicago

November 28, 2016
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Chicago's a great city for a bike-sharing service. It's pretty flat, and there are lots of wide roads with cycle lanes. I love Divvy and use it all the time. Not so much in the winter though: it gets very cold here. Nonetheless, this heat map of Divvy riders, created in R by Austin Wehrwein, reveals a hardcore set...

## Simulation in R For AP Statistics

November 28, 2016
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Make a simulation and function using R. I continue to teach some R programming in my AP Stats class because this is an essential skill for them to have. We are now in chapter five of our textbook, Probability and Simulation. I had my students review the parking problem on page 290. The problem asked

## Simple Anagram Finder Using R

November 27, 2016
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One of my early programming projects in Python was a word game solver (example: word jumble solver) – the early version was a simple script, which grew The post Simple Anagram Finder Using R appeared first on ProgrammingR.

## More about Flexible Frequency Models

November 27, 2016
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Modeling the frequency is one of the most important aspects in operational risk models. In the previous post (https://statcompute.wordpress.com/2016/05/13/more-flexible-approaches-to-model-frequency), the importance of flexible modeling approaches for both under-dispersion and over-dispersion has been discussed. In addition to the quasi-poisson regression, three flexible frequency modeling techniques, including generalized poisson, double poisson, and Conway-Maxwell poisson, with their implementations

## anytime 0.1.1: More robust

November 27, 2016
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CRAN just accepted the newest release 0.1.1 of anytime, following the previous five releases since September. anytime is a very focussed package aiming to do just one thing really well: to convert anything in integer, numeric, character, factor, ordered, ... format to POSIXct (or Date) objects -- and to do so without requiring a format string. See the anytime page, or...

## String Manipulation – Exercises

November 27, 2016
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In this set of exercises we will practice functions that enable us to manipulate strings.You can find more about string manipulation functions in Handling and Processing Strings in R e-book. Answers to the exercises are available here. If you have different solution, feel free to post it. Exercise 1 Load text from the file and

## Basic Shiny Application

November 27, 2016
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In this article I will describe how I built a basic web application with R and Shiny. Shiny is a web application framework for R and can be used to build and deploy interactive...