Articles by Marcelo S. Perlin

Site Migration

October 30, 2018 | Marcelo S. Perlin

- 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 more control over the dep... [Read more...]

Loops and Pizzas

October 19, 2018 | Marcelo S. Perlin

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 is a very common task t... [Read more...]

Update to GetLattesData

October 11, 2018 | Marcelo S. Perlin

- 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... [Read more...]

BatchGetSymbols 2.2

October 10, 2018 | Marcelo S. Perlin

- 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 CRAN. The major c... [Read more...]

Investing for the Long Run

May 12, 2018 | Marcelo S. Perlin

- 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 ... [Read more...]

Predatory Journals and R

April 22, 2018 | Marcelo S. Perlin

- 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 to ... [Read more...]

Writing papers about packages

March 16, 2018 | Marcelo S. Perlin

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 in FEX (Matlab file exch... [Read more...]

Major update to BatchGetSymbols

January 22, 2018 | Marcelo S. Perlin

Making it even easier to download and organize stock prices from Yahoo Finance - I just released a long due update to package BatchGetSymbols. The files are under review in CRAN and you should get the update soon. Meanwhile, you c... [Read more...]

The Brazilian post office and R

January 10, 2018 | Marcelo S. Perlin

- While I would like to post a success story about the Brazilian post office using R to analyze its internal data, the real story is the use of R’s logo for its Registered mail :). Have a look: My best guess is that someone... [Read more...]

Never miss an update!
Subscribe to R-bloggers to receive
e-mails with the latest R posts.
(You will not see this message again.)

Click here to close (This popup will not appear again)