Blog Archives

Site Migration

October 30, 2018
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- Its been almost two years since I first hosted this blog as an alternative outlet of my writings. Everything is currently being built using jekyll and hosted in github. It works fine but I want to have...

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Loops and Pizzas

October 19, 2018
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An Introduction to Loops in R - Loops in R First, if you are new to programming, you should know that loops are a way to tell the computer that you want to repeat some operation for a number of times. This...

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New package in CRAN: PkgsFromFiles

October 13, 2018
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New package in CRAN: PkgsFromFiles

- Its been a while since I write a CRAN package and this weekend I decided to work on a idea I had some time ago. The result is package PkgsFromFiles. When working with different computers at home or work, one...

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Update to GetLattesData

October 11, 2018
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Update to GetLattesData

- Last year I released package GetLattesData. This package is very handy for anyone that researches bibliometric data of Brazilian scholars. You could easily import the whole academic history of any researcher registered at the p...

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BatchGetSymbols 2.2

October 10, 2018
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BatchGetSymbols 2.2

- One of the main requests I get for package BatchGetSymbols is to allow the choice of frequency of the financial dataset. I finally got some time to work on it. I just posted a new version of BatchGetSymbols in...

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Benchmarking a SSD drive in reading and writing files with R

June 29, 2018
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Benchmarking a SSD drive in reading and writing files with R

- I recently bought a new computer for home and it came with two drives, one HDD and other SSD. The later is used for the OS and the former for all of my files. From all computers I had, both home and work, this is definitely the fastest. While some of...

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Second Edition of “Processamento e Analise de Dados Financeiros com o R”

June 12, 2018
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- It is with great pleasure that I announce the second edition of the portuguese version of my book, Processing and Analyzing Financial Data with R. This edition updates the material significantly. The portuguese version is now not only in par with the international version of the book, but...

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Investing for the Long Run

May 12, 2018
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Investing for the Long Run

- I often get asked about how to invest in the stock market. Not surprisingly, this has been a common topic in my classes. Brazil is experiencing a big change in its financial scenario. Historically, fixed income instruments paid a large premium over the stock market and that is no longer the case....

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Predatory Journals and R

April 22, 2018
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- My paper about the penetration of predatory journals in Brazil, Is predatory publishing a real threat? Evidence from a large database study, just got published in Scientometrics!. The working paper version is available in SSRN. This is a nice example of a data-intensive scientific work cycle, from gathering data...

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Writing papers about packages

March 16, 2018
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Some advices from a referee - Back in 2007 I wrote a Matlab package for estimating regime switching models. I was just starting to learn to code and this project was my way of doing it. After publishing it...

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