Author: 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....continue reading.

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...continue reading.

– Its been a while since I develop a CRAN package and this weekend I decided to work on a idea I had some time ago. The result is package...continue reading.

– 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...continue reading.

– 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...continue reading.

– 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...continue reading.

– 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...continue reading.

– 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...continue reading.

– 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...continue reading.

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...continue reading.

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...continue reading.

– 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...continue reading.

– As we come close to the end of 2017, its time to look back. This has been a great year for me in many ways. This blog started as...continue reading.

– In this post I’ll share my experience in setting up my own virtual server for hosting shiny applications in Digital Ocean. First, context. I’m working in a academic project...continue reading.

Downloading Annual Financial Reports and Corporate Events from B3 (formerly Bovespa) – Financial statements of companies traded at B3 (formerly Bovespa), the Brazilian stock exchange, are available in its website....continue reading.

Downloading Quarterly Financial Reports from Bovespa – Financial statements of companies traded at B3 (formerly Bovespa), the Brazilian stock exchange, are available in its website. Accessing the data for a...continue reading.

The latest version of GetTDData offers function get.yield.curve to download the current Brazilian yield curve directly from Anbima. The yield curve is a financial tool that shows how, based on...continue reading.

Update to GetHFData (Version 1.4) – GetHFData newest version (1.4) allows the recreation of the LOB (limit order book) based on order data. A limit order book is the standard...continue reading.

Downloading and reading bibliometric data from Lattes – Lattes is the largest and unique platform for academic curriculumns. There you can find information about the academic work of ALL Brazilian...continue reading.

– Its been 8 months since I switched from Windows 10 to Linux Mint. In this post I’ll talk about my experience as a scholar and R user in this...continue reading.