Tag Archives: insightr

Using the tuber package to analyse a YouTube channel

By Gabriel Vasconcelos So I decided to have a quick look at the tuber package to extract YouTube data in R. My cousin is a singer (a hell of a good one) and he has a YouTube channel (dan vasc), … Continue reading

Posted in R | Tagged , , , , , , , , | 7 Comments

A crazy day in the Bitcoin World

By Gabriel Vasconcelos Today, November 29, 2017 was a crazy day in the Bitcoin world and the craziness is still going on as I write this post. The price range was of thousands of Dollars in a few hours. Bitcoins … Continue reading

Posted in R | Tagged , , , , , | 8 Comments

Formal ways to compare forecasting models: Rolling windows

By Gabriel Vasconcelos Overview When working with time-series forecasting we often have to choose between a few potential models and the best way is to test each model in pseudo-out-of-sample estimations. In other words, we simulate a forecasting situation where … Continue reading

Posted in R | Tagged , , , , , | 7 Comments

Writing Julia functions in R with examples

By Gabriel Vasconcelos The Julia programming language is growing fast and its efficiency and speed is now well-known. Even-though I think R is the best language for Data Science, sometimes we just need more. Modelling is an important part of … Continue reading

Posted in R | Tagged , , , , | 8 Comments

Uber assignment with lpSolve

By Yuri Fonseca In this post we are going to make an Uber assignment simulation and calculate some metrics of waiting time through simulation.

Posted in R | Tagged , , , , , , | 3 Comments

How Random Forests improve simple Regression Trees?

By Gabriel Vasconcelos Regression Trees In this post I am going to discuss some features of Regression Trees an Random Forests. Regression Trees are know to be very unstable, in other words, a small change in your data may drastically … Continue reading

Posted in R | Tagged , , , , , , | 5 Comments

R Course in Rio de Janeiro

R Course in Rio de Janeiro We are preparing an R for Data-Science course (direct link here) in partnership with the IBPAD (Brazilian Institute of Research and Data Analysis). It is a great course for those who want to have … Continue reading

Posted in R | Tagged , , , , , , | 4 Comments