Posts Tagged ‘ R ’

Le Monde puzzle [#904.5]

March 25, 2015
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Le Monde puzzle [#904.5]

About this #904 arithmetics Le Monde mathematical puzzle: Find all plural integers, namely positive integers such that (a) none of their digits is zero and (b) removing their leftmost digit produces a dividing plural integer (with the convention that one digit integers are all plural). a slight modification in the R code allows for a […]

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A Speed Comparison Between Flexible Linear Regression Alternatives in R

March 25, 2015
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A Speed Comparison Between Flexible Linear Regression Alternatives in R

Everybody loves speed comparisons! Is R faster than Python? Is dplyr faster than data.table? Is STAN faster than JAGS? It has been said that speed comparisons are utterly meaningless, and in general I agree, especially when you are comparing apples a...

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ChainLadder 0.2.0 adds Solvency II CDR functions

March 24, 2015
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ChainLadder 0.2.0 adds Solvency II CDR functions

ChainLadder is an R package that provides statistical methods and models for claims reserving in general insurance.With version 0.2.0 we added new functions to estimate the claims development result (CDR) as required under Solvency II. Special thanks t...

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Factor Evaluation in Quantitative Portfolio Management

March 23, 2015
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Factor Evaluation in Quantitative Portfolio Management

When it comes to managing a portfolio of stocks versus a benchmark the problem is very different from defining an absolute return strategy. In the former one has to hold more stocks than in the later where no stocks at all can be held  if there is not good enough opportunity.  The reason for that is the tracking error. This […]

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BayesFactor updated to version 0.9.11-1

March 23, 2015
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The BayesFactor package has been updated to version 0.9.11-1. The changes are:  CHANGES IN BayesFactor VERSION 0.9.11-1CHANGES  * Fixed memory bug causing importance sampling to fail.  CHANGES IN BayesFactor VERSION 0.9.11CHANGES  *...

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I’m all about that bootstrap (’bout that bootstrap)

March 21, 2015
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I’m all about that bootstrap (’bout that bootstrap)

As some of my regular readers may know, I'm in the middle of writing a book on introductory data analysis with R. I'm at the point in the writing of the book now where I have to make some hard… Continue reading →

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The synoptic problem and statistics [book review]

March 19, 2015
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The synoptic problem and statistics [book review]

A book that came to me for review in CHANCE and that came completely unannounced is Andris Abakuks’ The Synoptic Problem and Statistics.  “Unannounced” in that I had not heard so far of the synoptic problem. This problem is one of ordering and connecting the gospels in the New Testament, more precisely the “synoptic” gospels […]

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the vim cheat sheet

March 18, 2015
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the vim cheat sheet

Filed under: Kids, Linux, R, University life, Wines Tagged: An Evil Guest, editor, unix, vim

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Dark themes for writing

March 18, 2015
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Dark themes for writing

I spend much of my day sitting in front of a screen, coding or writing. To limit the strain on my eyes, I use a dark theme as much as possible. That is, I write with light colored text on a dark background. I don’t know why this is not the default in more software […]

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R in Insurance: Abstract submission closes end of March

March 17, 2015
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R in Insurance: Abstract submission closes end of March

Hurry! The abstract submission deadline for the 3rd R in Insurance conference in Amsterdam, 29 June 2015 is approaching soon. You have until the 28th of March to submit a one-page abstract for consideration. Both academic and practitioner proposals rel...

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