Manny Parzen Used R!

August 20, 2016
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Manny Parzen Used R!

Prof. Manny Parzen, a pioneer of modern statistics, passed away in February, aged 87. I should have commented back then, but it’s still worth saying something today. I happened to be thinking of him this morning. I did not know Manny personally. This makes it odd that I refer to him by his first name, … Continue...

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Descriptive Statistics Final Project with Python & R

August 20, 2016
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Descriptive Statistics Final Project with Python & R

The post Descriptive Statistics Final Project with Python & R appeared first on Networkx.

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RQuantLib 0.4.3: Lots of new Fixed Income functions

August 19, 2016
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A release of RQuantLib is now on CRAN and in Debian. It contains a lot of new code contributed by Terry Leitch over a number of pull requests. See below for full details but the changes focus on Fixed Income and Fixed Income Derivatives, and cover swap, discount curves, swaptions and more. In the blog post...

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Visualizing when I’m most productive during the day

August 19, 2016
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Visualizing when I’m most productive during the day

Analyzing my (and others') git activity - Click here to explore the data yourself Yesterday I saw this retweet from @timelyportfolio that links to a gist by @gka. The gist gave a few short scripts that can show you when your git commits tak...

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Five problems (and one solution) with dual-axis time series plots

August 19, 2016
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Five problems (and one solution) with dual-axis time series plots

If you need to present two time series spanning the same period, but in wildly different scales, it's tempting to use a time series chart with two separate vertical axes, one for each series, like this one from the Reserve Bank of New Zealand: Charts like this typically have one or more crossover points, and that crossing imparts meaning...

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vtreat 0.5.27 released on CRAN

August 19, 2016
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Win-Vector LLC, Nina Zumel and I are pleased to announce that ‘vtreat’ version 0.5.27 has been released on CRAN. vtreat is a data.frame processor/conditioner that prepares real-world data for predictive modeling in a statistically sound manner. (from the package documentation) Very roughly vtreat accepts an arbitrary “from the wild” data frame (with different column types, … Continue...

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ggplot2 themes examples

August 19, 2016
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ggplot2 themes examples

This short post is exactly what it seems: a showcase of all ggplot2 themes available within the ggplot2 package. I was doing such a list for myself (you know that feeling …”how would it look like with this theme? let’s try this one…”) and at the end I thought it could have be useful for Related Post

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Trading strategy: Making the most of the out of sample data

August 19, 2016
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Trading strategy: Making the most of the out of sample data

When testing trading strategies a common approach is to divide the initial data set into in sample data: the part of the data designed to calibrate the model and out of sample data: the part of the data used to validate the calibration and ensure that the performance created in sample will be reflected in the

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Venn Colors: Happy Bday, John Venn

August 19, 2016
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Venn Colors: Happy Bday, John Venn

Tweet I know that venn diagrams are not as sexy as they used to be and that John Venn’s birthday was actually Aug 4, but venn diagram’s still serve a purpose here and there, especially if we can get some more interesting colors in there. Plus, ...

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New banxicoR package

August 18, 2016
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New banxicoR package

The banxicoR package is now available on CRAN. Much like inegiR this package aims to bring official Mexican data easily into R, in this case by scrapping iqy calls to the SIE (Sistema de Información Económica) webservice of the Bank of Mexico. Introduction The major difference with inegiR is that the Bank of Mexico does not have an API, so...

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Recurrent Models and Examples with MXNetR

Recurrent Models and Examples with MXNetR

As a new lightweight and flexible deep learning platform, MXNet provides a portable backend, which can be called from R side. MXNetR is an R package that provide R users with fast GPU computation and state-of-art deep learning models. In this post, We have provided several high-level APIs for recurrent models with MXNetR. Recurrent neural network...

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Resource governor and external resource pool for Microsoft R Services

August 18, 2016
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Resource governor and external resource pool for Microsoft R Services

Setting external resource pool for execution of R commands using sp_execute_external_script has proven extremely useful, especially in cases where you have other workers present, when you don’t want to overdo on data analysis and get to much resources from others (especially when running data analysis in production environment) or when you know that your data

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Final Call: Hadley Wickham’s Master R Workshop September 12 and 13 in NYC

August 18, 2016
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Final Call: Hadley Wickham’s Master R Workshop September 12 and 13 in NYC

Want to Master R?  There’s no better time or place if you’re within an easy train, plane, automobile ride or a short jog of Hadley Wickham’s workshop on September 12th and 13th at the AMA Conference Center in New York City. Register here: https://www.eventbrite.com/e/master-r-developer-workshop-new-york-city-tickets-21347014495 As of today, there are just 20+ seats left. Discounts are still

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Sentiment analysis of Trump’s tweets with R

August 18, 2016
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Sentiment analysis of Trump’s tweets with R

Data Scientist David Robinson caused a bit of a stir in the media when he analyzed Donald Trump's tweets and revealed that those sent from an Android device were likely sent by the candidate himself, while those sent from an iPhone were likely sent by campaign staffers. The difference? As seen in the chart below, Android-based tweets used angrier,...

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Turn your tough decisions into simple rules

August 18, 2016
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Turn your tough decisions into simple rules

If you know R, you could building simple, accurate decision rules today with this sweet new package. The post Turn your tough decisions into simple rules appeared first on Decision Science News.

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My criticism of R numeric summary

August 18, 2016
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My criticism of R numeric summary

My criticism of R‘s numeric summary() method is: it unfaithful to numeric arguments (due to bad default behavior) and frankly it should be considered unreliable. It is likely the way it is for historic and compatibility reasons, but in my opinion it does not currently represent a desirable set of tradeoffs. summary() likely represents good … Continue...

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YAML: Define an R function

August 18, 2016
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YAML to define hierarchic models Glenn is using the data.tree package to model commercial mortgage-backed securities. If you don’t know what that is, you can read it all up on Wikipedia. But in a nutshell, CMBS (or REMIC) are financial instruments that bundle multiple commercial real estate mortgages, and securitize (or bundle) them into tradeable entities. The post

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Extract tables from messy spreadsheets with jailbreakr

August 17, 2016
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Extract tables from messy spreadsheets with jailbreakr

R has some good tools for importing data from spreadsheets, among them the readxl package for Excel and the googlesheets package for Google Sheets. But these only work well when the data in the spreadsheet are arranged as a rectangular table, and not overly encumbered with formatting or generated with formulas. As Jenny Bryan pointed out in her recent...

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RClimate Script to Plot 90+ days in summer

August 17, 2016
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RClimate Script to Plot 90+ days in summer

The weatherData package, link , makes it very easy to retrieve detailed weather data from hundreds of stations across the US. I developed this script to retrieve and plot daily maximum and minimum temperatures and highlight days with 90+ max … Continue reading →

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Dual axes time series plots may be ok sometimes after all

August 17, 2016
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Dual axes time series plots may be ok sometimes after all

Are they really as bad as all that? I’ve been mulling over time series charts with two different y axes, which are widely deprecated in the world of people who see ourselves as professional data workers. Looking down on dual axis time series charts ...

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Update influence.ME, or why I love the open source community

August 17, 2016
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The other day, Kevin Darras contacted me about my R package influence.ME. The package didn’t work with the kind of models he wanted to estimate, and Kevin was looking for a solution. He had been ...

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Making fast, good decisions with the FFTrees R package

August 17, 2016
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Making fast, good decisions with the FFTrees R package

“…e are suspicious of rapid cognition. We live in a world that assumes that the quality of a decision is directly related to the time and effort that went into making it” Malcom Gladwell, Blink In his book Blink, Malcolm Gladwell summarises a common misconception about good decision making. According to folk wisdom, the more time, ...

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Calculate Wages and Benefits in R with blscrapeR

August 16, 2016
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Calculate Wages and Benefits in R with blscrapeR

The most difficult thing about working with BLS data is gaining a clear understanding on what data are available and what they represent. Some of the more popular data sets can be found on the BLS Databases, Tables & Calculations website. The selected examples below do not include all series or databases. Install blscrapeR The

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R Markdown: How to insert page breaks in a MS Word document

August 16, 2016
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R Markdown: How to insert page breaks in a MS Word document

RStudio offers the opportunity to build MS Word documents from R Markdown files (.Rmd). However, since formatting options in Markdown are very limited, there is no ‘native’ Markdown code to insert page breaks in the final MS Word output file. In this blog post I explain, how to define page breaks in the RMarkdown document Related Post

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Mapping medical cannabis dispensaries: from PDF table to Google Map with R

August 16, 2016
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Mapping medical cannabis dispensaries: from PDF table to Google Map with R

by Sheri Gilley, Microsoft Senior Software Engineer In 2014, Illinois passed into law the creation of a medical cannabis pilot program. As my son has cancer and marijuana could greatly help with some of his symptoms, we eagerly applied for a card when registration was available early in 2015. The first dispensaries were not available until November 2015. At...

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ggtree paper published

August 16, 2016
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ggtree paper published

Today ggtree received 100 stars on and I found the paper was online at the same day by the tweet: ggtree, Methods in Ecology and Evolutionに掲載されたのか。オープンアクセスっぽいな。https://t.co/JlET18BSZv— ホクソピペット (@siero5335) August 16, 2016 I am quite exciting about it. Now ggtree is citable by doi:10.1111/2041-210X.12628. In the review period, ggtree had already...

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14 new R jobs from around the world (2016-08-16)

August 16, 2016
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14 new R jobs from around the world (2016-08-16)

Here are the new R Jobs for 2016-08-16. To post your R job on the next post Just visit this link and post a new R job to the R community. You can either post a job for free (which works great), or pay $50 to have your job featured (and get extra exposure). Current R jobs Job seekers: please follow the links below to learn more and...

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The Win-Vector parallel computing in R series

August 16, 2016
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With our recent publication of “Can you nest parallel operations in R?” we now have a nice series of “how to speed up statistical computations in R” that moves from application, to larger/cloud application, and then to details. For your convenience here they are in order: A gentle introduction to parallel computing in R Running … Continue...

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RQGIS 0.1.0 release

August 15, 2016
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RQGIS 0.1.0 release

We proudly announce the release of RQGIS! RQGIS establishes an interface between R and QGIS, i.e. it allows the user to access the more than 1000 QGIS geoalgorithms from within R.

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