Monthly Archives: April 2016

On Nested Models

April 26, 2016
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On Nested Models

We have been recently working on and presenting on nested modeling issues. These are situations where the output of one trained machine learning model is part of the input of a later model or procedure. I am now of the opinion that correct treatment of nested models is one of the biggest opportunities for improvement … Continue reading On...

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Last call for abstracts 29th April for EARL Conference London

April 26, 2016
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Last call for abstracts 29th April for EARL Conference London

EARL is a Conference for users and developers of the open source R programming language. The primary focus of the Conference is the commercial usage of R across a range of industry sectors with the aim of sharing knowledge and … Continue reading →

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How to Install R on Linux Ubuntu 16.04 Xenial Xerus

April 26, 2016
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How to Install R on Linux Ubuntu 16.04 Xenial Xerus

The long-awaited new Ubuntu LTS Xenial Xerus was released last week. I wrote a tutorial on installing R and R-Studio on the old 14.04 LTS, so I figured I’d update that document. Not much has changed for the new 16.04 version but there are new repositories. Install R-Base You can find R-Base in the Software

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Password Input with getPass

April 26, 2016
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Password Input with getPass

As of this morning, the getPass package version 0.1-1 is available on CRAN. The package offers a portable way to read user input without echoing the text, for the purposes of reading passwords. Some screenshots from various platforms are given below. ...

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Password Input with getPass

April 26, 2016
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Password Input with getPass

As of this morning, the getPass package version 0.1-1 is available on CRAN. The package offers a portable way to read user input without echoing the text, for the purposes of reading passwords. Some screenshots from various platforms are given below....

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yorkr ranks T20 batsmen and bowlers

April 26, 2016
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yorkr ranks T20 batsmen and bowlers

Here is another short post which ranks T20 batsmen and bowlers. These are based on match data from Cricsheet. The ranking is done on average runs and average strike rate for batsmen and average wickets and average economy rate for bowlers. This post has also been published in RPubs RankT20Players. You can download this as

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Effect of normalization of data

April 26, 2016
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Effect of normalization of data

Clustering (distributed in particular) can  be dependent on normalization of data. With usage of distance models, data – when clustered – can produce different results or even different clustering models. A simple every day example can produce two different results. For example, measuring units.  For this purpose we will create two R data-frames. person

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New package: weightr (v. 1.0.0)

April 26, 2016
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  This is a re-post of Dr. Jack Vevea email to the R packages mailing list Greetings, R users! I’m excited and pleased to announce that the weightr package was released to CRAN today: https://cran.r-project.org/web/packages/weightr/ Our package provides a function for meta-analysts to implement the Vevea and Hedges (1995) weight-function model for publication bias in R and, by specifying...

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New R package to access World Bank data

April 26, 2016
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Staying on top of new CRAN packages is quite a challenge nowadays. However, thanks to Dirk’s CRANberries service I occasionally spot a new gem, such as wbstats, which appeared on CRAN last week. Similarly to the WDI package, wbstats offers an interface to the World Bank database. With the functions of wbstats the World Bank data can be searched and...

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Detecting Structural Breaks in China’s FX Regime

April 26, 2016
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Detecting Structural Breaks in China’s FX Regime

Edit: This post is in its infancy. Work is still ongoing as far as deriving insight from the data is concerned. More content and economic insight is expected to be added to this post as and when progress is made in that direction. This is an attempt to detect structural breaks in China’s FX regime … Continue reading Detecting...

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