2327 search results for "time series"

Review: Learning Shiny

January 5, 2016
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Review: Learning Shiny

I was asked to review Learning Shiny (Hernán G. Resnizky, Packt Publishing, 2015). I found the book to be useful, motivating and generally easy to read. I'd already spent some time dabbling with Shiny, but the book helped me graduate from paddling in the shallows to wading out into the Shiny sea. The book states The post

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Our R package roundup

December 30, 2015
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Our R package roundup

A year in review It’s the time of the year again where one eats too much, and gets in a reflective mood! 2015 is nearly over, and us bloggers here at opiateforthemass.es thought it would be nice to argue endlessly which R package was the best/neatest/most fun/most useful/most whatever in this year! Since we are in a festive mood, we decided...

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R-Markdown and Knitr Tutorial (Part 1)

December 28, 2015
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R-Markdown is a great way to create dynamic documents with embedded chunks of R code. The document is self contained and fully reproducible which makes it very easy to share. This post will be the first in a multi part series on how to embed Plotly graphs in R-Markdown documents as well as presentations. R-Markdown

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Using Checksum to Guess Message Length: Not a Good Idea!

December 22, 2015
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Using Checksum to Guess Message Length: Not a Good Idea!

A question posed by one of my colleagues: can a checksum be used to guess message length? My immediate response was negative and, as it turns out, a simple simulation supported this knee-jerk reaction. Here's the situation: a piece of software has been written to process a stream of messages. Each message is a sequence The post

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Prediction Intervals for Poisson Regression

December 20, 2015
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Prediction Intervals for Poisson Regression

Different from the confidence interval that is to address the uncertainty related to the conditional mean, the prediction interval is to accommodate the additional uncertainty associated with prediction errors. As a result, the prediction interval is always wider than the confidence interval in a regression model. In the context of risk modeling, the prediction interval

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BayesiaLab-Like Network Graphs for Free with R

December 18, 2015
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BayesiaLab-Like Network Graphs for Free with R

My screen has been filled with ads from BayesiaLab since I downloaded their free book. Just as I began to have regrets, I received an email invitation to try out their demo datasets. I was especially interested in their perfume ratings data. In this mo...

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Integrating Python and R Part III: An Extended Example

December 18, 2015
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By Chris Musselle This is the third post in a three part series where I have explored the options available for including both R and Python in a data analysis pipeline. See post one for some reasons on why you … Continue reading →

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Teaching with RStudio

The RStudio IDE is a central component of the R software ecology that makes it easier to code in R, or to use R with other tools. This note discusses its use in a teaching environment. Most of my teaching experience lies with Stata, but in recent years, I have also experimented teaching with R and RStudio...

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Vacancies in the Netherlands

December 12, 2015
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Vacancies in the Netherlands

Over the last couple of years, each weekend I have registering how many vacancies websites claim to have. This post shows some of the observations one may draw from the plots.DataData is from general and more specialized websites. The first observation...

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Sequential Analysis

December 11, 2015
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Sequential Analysis

We here at Win-Vector LLC been working through an ad-hoc series about A/B testing combining elements of both operations research and statistical points of view. A dynamic programming solution to A/B test design Why does designing a simple A/B test seem so complicated? A clear picture of power and significance in A/B tests Bandit Formulations … Continue reading...

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