Walter D.

108 Added | 8 Magazines | 8 Likes | 1 Following | 3 Followers | @WalterD2r84 | Keep up with Walter D. on Flipboard, a place to see the stories, photos, and updates that matter to you. Flipboard creates a personalized magazine full of everything, from world news to life’s great moments. Download Flipboard for free and search for “Walter D.”

Scraping a website with 5 lines of R code

(This article was first published on <b> Revolutions</b>, and kindly contributed to R-bloggers)In what is rapidly becoming a series — cool things you can do …

R Language

Creating websites in R

This tutorial provides an introduction to creating websites using R, R Markdown and GitHub pages.<p>This tutorial was originally presented at the …

Create supply and demand economics curves with ggplot2

This is now an R package named `reconPlots`.<p>So far, teaching at BYU has been delightful. I’ve been using static course-specific websites for the two …

Data Visualization

Inovance - Using a Random Forest and Hidden Markov Model to Improve Trade Performance

Machine learning is a powerful tool for not only coming up with new strategies (like we do in TRAIDE) but also for improving your existing strategies.<p>…

Analysing Cryptocurrency Market in R

Cryptocurrency market has been growing rapidly that being an Analyst, It intrigued me what does it comprise of. In this post, I’ll explain how can we …

New RStudio cheat sheet: Strings in R

(This article was first published on <b> Revolutions</b>, and kindly contributed to R-bloggers)The RStudio team has created another very useful cheat sheet …

Data Science

Testing for time trend

Ice-free in Hudson Bay: some real data<p>Hudson Bay, in northern Canada, is a large inland sea. It freezes over in the winter and thaws in the spring. …

The Monty Hall Problem with R

​Introduction<p>This is Monty Hall, a game show host.<p>This is Marilyn vos Savant.<p>Image sources: Monty Hall | Marilyn vos Savant<p>​I came across the Monty …

TensorFlow for R

Time Series Forecasting with Recurrent Neural Networks<p>In this section, we’ll review three advanced techniques for improving the performance and …

Deep Learning

Writing Julia functions in R with examples

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 …

2017-11-18-API-Development-with-R-Part-I

API is an effective way of distributing analysis outputs to external clients. When it comes to API development with R, however, there are not many …

Package QuantTools

Published:<p>2017-09-19<p>Author:<p>Stanislav Kovalevsky<p>Maintainer:<p>Stanislav Kovalevsky <so.kovalevsky at gmail.com><p>BugReports:

Reproducible Finance with R: The Sharpe Ratio

by Jonathan Regenstein<p>Financial applications were an early driving force behind the adoption of the R language, but as data science becomes …

Let’s write a cryptocurrency bot. (part 1)

<b>PLEASE NOTE (1/6/2018)</b><i>: This article, and the underlying open source project is being massively rewritten to use the excellent</i> <i>ccxt</i> <i>library and a</i> …

Trading

The R Trader

March 22, 2018, 7:56 am<p>I came across this excellent article lately “Machine learning at central banks” which I decided to use as a basis for a new …

Data Science

How to create a RESTful API for a machine learning credit model in R

In our last post, we talked about how APIs can solve issues when programmers use different programming languages. For example, R is the language many …

Kali Linux on Raspberry Pi 3

Cointegrated Augmented Dickey Fuller Test for Pairs Trading Evaluation in R

In the previous article on cointegration in R we simulated two non-stationary time series that formed a cointegrated pair under a specific linear …

Profit

Shorting at High: Algo Trading Strategy in R

Milind began his career in Gridstone Research, building earnings models and writing earnings notes for NYSE listed companies, covering Technology and …

Quantmod: Analyse Stock and Forex Data Using R

The <b>quantmod</b> library in R allows for streaming of financial data. This is quite useful when it comes to analysing financial markets and formulating …

Guide to Combine and Consolidate Data in Excel

Guide to combining and consolidating data in Excel. This includes consolidating data from multiple cells, multiple worksheets, and multiple workbooks …

WatsonR : IBM Watson + R Package - Part 1

Edited: September 2016<p>WatsonR is a package for R that helps Users access the power of IBM Watson Developer Cloud<p>CAUTION: As of 9/9 THE CODE BASE IS …

Harry Potter

Exploring mean reversion and cointegration with Zorro and R: part 1

This series of posts is inspired by several chapters from Ernie Chan’s highly recommended book <i>Algorithmic Trading</i>. The book follows Ernie’s first …

Trading

Hands-on dplyr tutorial for faster data manipulation in R

Move cells with data to the top

Did you spend too much time to move cells so that there are no blank cells in each column?<p>Again, a picture tells thousand words. Here’s the …

Statistical tools for data analysis and visualization

Previously, we described the essentials of R programming and provided quick start guides for importing data into <b>R</b> as well as converting your data …

Data Science

7 Winning Trading Systems Reviewed - 3 Day High/Low

Back in 2009 Larry Connors and Cesar Alvarez published several short term trading systems in their book “High Probability ETF Trading". They …

Trading

A Gentle Introduction to Finance using R: Efficient Frontier and CAPM – Part 1

The following entry explains a basic principle of finance, the so-called efficient frontier and thus serves as a gentle introduction into one area of …