March 2017

Quandl and Forecasting

March 16, 2017 | R Views

Welcome to another installment of Reproducible Finance with R. Today we are going to shift focus in recognition of the fact that there’s more to Finance than stock prices, and there’s more to data download than quantmod/getSymbols. In this post, we will explore commodity prices using data ...

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Summary of the BaselR meetup – march 2017

March 16, 2017 | Joris Muller's blog - Posts about R

Last week I took part in the BaselR meeting hosted in the very nice Roche Learning Center Auditorium and organised by Mango-Solutions. This post will summarise this meetup. FFTrees FFTrees was presented by its creator, Nathaniel D. Phillips. This ... [Read more...]

what does more efficient Monte Carlo mean?

March 16, 2017 | xi'an

“I was just thinking that there might be a magic trick to simulate directly from this distribution without having to go for less efficient methods.” In a simple question on X validated a few days ago [about simulating from x²φ(x)] popped up the remark that the person asking the ...

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Book Review: Testing R Code

March 16, 2017 | David Smith

When it comes to getting things right in data science, most of the focus goes to the data and the statistical methodology used. But when a misplaced parenthesis can throw off your results entirely, ensuring correctness in your programming is just as important. A new book published by CRC Press, ... [Read more...]

Mappa choropleth eventi di musica a Roma

March 16, 2017 | jprimav

Visualizziamo gli eventi di musica presi da Facebook su una mappa di Roma divisa per zone urbanistiche. I dati si lavorano con Python e R (ggplot2 e leaflet). The post Mappa choropleth eventi di musica a Roma appeared first on SLOW DATA.

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Mapping Housing Data with R

March 16, 2017 | realdataweb

What is my home worth? Many homeowners in America ask themselves this question, and many have an answer. What does the market think, though? The best way to estimate a property’s value is by looking at other, similar properties that have sold recently in the same area – the comparable ...

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Forrester’s 2017 Take on Tools for Data Science

March 16, 2017 | Bob Muenchen

In my ongoing quest to track The Popularity of Data Science Software, I’ve updated the discussion of the annual report from Forrester, which I repeat here to save you from having to read through the entire document. If your organization … Continue reading →

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R + D3, A powerful and beautiful combo

March 15, 2017 | Adventures in Data

For a while now, I have been looking for ways to incorporate pretty D3 graphics into R markdown reports or shiny apps. Why? I like R for the ability to be able to do data handling, stats, ML all very easily with minimal code. But when you want to prese... [Read more...]

R, GIS, and fuzzyjoin to reconstruct demographic data for NUTS regions of Denmark

March 15, 2017 | Ilya Kashnitsky

NUTS

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Plotting trees from Random Forest models with ggraph

March 15, 2017 | Shirin's playgRound

Today, I want to show how I use Thomas Lin Pederson’s awesome ggraph package to plot decision trees from Random Forest models. I am very much a visual person, so I try to plot as much of my results as possible because it helps me get a better feel ...

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Improved Python-style Logging in R

March 15, 2017 | Jonathan Callahan

This entry is part 21 of 21 in the series Using RLast August, in Python-style Logging in R, we described using an R script as a wrapper around the futile.logger package to generate log files for an operational R data processing … read more ... [Read more...]

An R Script to Calculate and Plot Alpha

March 15, 2017 | The Commodity Guy

Alpha is the essence of trading. Getting risk-adjusted returns above the market is a zero sum game and what leads to value. Here's an R script to calculate and plot the alpha of an asset. Any asset that is available for download in Yahoo is OK. It also outputs some ...

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Puts as Protection

March 15, 2017 | klr

Many asset management firms are happily enjoying record revenue and profits driven not by inorganic growth or skillful portfolio management but by a seemingly endless increase in US equity prices. These firms are effectively commodity producers entirel... [Read more...]

Why I love R Notebooks

March 15, 2017 | Nathan Stephens

by Nathan Stephens Note: R Notebooks requires RStudio Version 1.0 or later I’m a big fan of the R console. During my early years with R, that’s all I had, so I got very comfortable with pasting my code into the console. Since then I’ve used many code ... [Read more...]

Ensemble Methods are Doomed to Fail in High Dimensions

March 15, 2017 | Bob Carpenter

Ensemble methods By ensemble methods, I (Bob, not Andrew) mean approaches that scatter points in parameter space and then make moves by inteprolating or extrapolating among subsets of them. Two prominent examples are: Ter Braak’s differential evolution Goodman and Weare’s walkers There are extensions and computer implementations of ... [Read more...]

Jobs for R users – 7 R jobs from around the world (2017-03-15)

March 15, 2017 | Tal Galili

<img src=' [Read more...]

Neural Networks: How they work, and how to train them in R

March 15, 2017 | David Smith

With the current focus on deep learning, neural networks are all the rage again. (Neural networks have been described for more than 60 years, but it wasn't until the the power of modern computing systems became available that they have been successfully applied to tasks like image recognition.) Neural networks are ... [Read more...]

New screencast: using R and RStudio to install and experiment with Apache Spark

March 15, 2017 | John Mount

I have new short screencast up: using R and RStudio to install and experiment with Apache Spark. More material from my recent Strata workshop Modeling big data with R, sparklyr, and Apache Spark can be found here. [Read more...]

RevoScaleR package dependencies with graph visualization

March 15, 2017 | tomaztsql

MRAN currently holds 7520 R Packages. We can see this with usage of following command (stipulating that you are using MRAN R version. ): library(tools) df_ap

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Adding figure labels (A, B, C, …) in the top left corner of the plotting region

March 15, 2017 | January

I decided to submit a manuscript using only R with knitr, pandoc and make. Actually, it went quite well. Certainly, revisions of manuscript with complex figures did not require much of manual work once the R code for the figures has been created. The manuscript ended up as a Word ...

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R-bloggers

R news and tutorials contributed by hundreds of R bloggers

March 2017

Quandl and Forecasting

Summary of the BaselR meetup – march 2017

what does more efficient Monte Carlo mean?

Book Review: Testing R Code

Mappa choropleth eventi di musica a Roma

Mapping Housing Data with R

Forrester’s 2017 Take on Tools for Data Science

R + D3, A powerful and beautiful combo

R, GIS, and fuzzyjoin to reconstruct demographic data for NUTS regions of Denmark

Plotting trees from Random Forest models with ggraph

Improved Python-style Logging in R

An R Script to Calculate and Plot Alpha

Puts as Protection

Why I love R Notebooks

Ensemble Methods are Doomed to Fail in High Dimensions

Jobs for R users – 7 R jobs from around the world (2017-03-15)

Neural Networks: How they work, and how to train them in R

New screencast: using R and RStudio to install and experiment with Apache Spark

RevoScaleR package dependencies with graph visualization

Adding figure labels (A, B, C, …) in the top left corner of the plotting region

March 2017

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