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. [Read more...]

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 ... [Read more...]

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 ... [Read more...]

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 ... [Read more...]

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In my role I have to produce a lot of run charts and control charts for monthly data, but sometimes there are processes behind the run charts that merit looking at the data on a daily basis. It can become impractical to start producing run c... [Read more...]

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Tasks: Compute the Effective Number of Parties by year and region Using the American National Election Studies, compute the Effective Number of Parties in the electorate across regions and years/waves. The data The data come from The American National Election Studies (ANES). The ANES is a survey that covers ... [Read more...]

A broad family of fast and effective forecast methods Exponential smoothing state space methods constitute a broad family of approaches to univariate time series forecasting that have been around for many decades and only in the twenty-first century pl... [Read more...]

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I spend a considerable time of my working hours with data processing where I often use the %in% R function as x %in% y. Whenever I need the negation of that, I used to write !(x %in% y). Not much of a hassle, but still, wouldn’t it be nicer ... [Read more...]

Have you used RForcecom to connect R to Salesforce? It’s really cool, and thanks to it using Bulk API, it’s absolutely rapid. Anyway, I recently came across a problem when trying to query records which had been edited based o... [Read more...]

Have you used RForcecom to connect R to Salesforce? It’s really cool, and thanks to it using Bulk API, it’s absolutely rapid. Anyway, I recently came across a problem when trying to query records which had been edited based o... [Read more...]

I recently attempted a Stylistic Analysis of the Pakistani Prime Minister’s speeches, in order to identify if his speeches exhibit different Stylistic patterns. Large differences would indicate possibilities of different writers. Background to this ... [Read more...]

.fusion-fullwidth-1 { padding-left: px !important; padding-right: px !important; }by Joseph Rickert I am ever-optimistic that on the weekend I will have enough time and bra... [Read more...]

Motivation I had to install RStudio Server in a computer recently upgraded to OS X Sierra. The steps are the same as in a previous post (RStudio Server on OS X El Capitan ) Homebrew setup If you don't have Homebrew installed you'll need to install it first. In my opinion ... [Read more...]

The chi-square test of independence is used to analyze the frequency table (i.e. contengency table) formed by two categorical variables. The chi-square test evaluates whether there is a significant association between the categories of the two variables. This article describes the basics of chi-square test and provides practical examples ... [Read more...]