The End of the Honeymoon: Falling Out of Love with quantstrat

May 22, 2017
By
The End of the Honeymoon: Falling Out of Love with quantstrat

Introduction I spent good chunks of Friday, Saturday, and Sunday attempting to write another blog post on using R and the quantstrat package for backtesting, and all I have to show for my work is frustration. So I’ve started to fall out of love with quantstrat and am thinking of exploring Python backtesting libraries from…Read more The...

Read more »

R vs Python: Different similarities and similar differences

May 22, 2017
By
R vs Python: Different similarities and similar differences

A debate about which language is better suited for Datascience, R or Python, can set off diehard fans of these languages into a tizzy. This post tries to look...

Read more »

Connecting R to an Oracle Database

May 22, 2017
By
Connecting R to an Oracle Database

R is a very popular language for doing analytics, and particularly statistics, on your data. There are a number of R functions for reading in data, but most of...

Read more »

Sunflowers for COLOURlovers

May 22, 2017
By
Sunflowers for COLOURlovers

Andar, lo que es andar, anduve encima siempre de las nubes (Del tiempo perdido, Robe) If you give importance to colours, maybe you know already COLOURlovers. As can be...

Read more »

Arranging subplots with ggplot2

May 21, 2017
By
Arranging subplots with ggplot2

For my recently published paper, I produced not-so-standard figures that show the two step decomposition used in the analysis. Have a look:

Read more »

Manipulate Biological Data Using Biostrings Package Exercises (Part 1)

May 21, 2017
By
Manipulate Biological Data Using Biostrings Package Exercises (Part 1)

Bioinformatics is an amalgamation Biology and Computer science.Biological Data is manipulated using Computers and Computer software’s in Bioinformatics. Biological Data includes DNA; RNA & Protiens. DNA & RNA is...

Read more »

A Very Palette-able Post

May 21, 2017
By
A Very Palette-able  Post

Many of my posts seem to begin with a link to a tweet, and this one falls into that pattern: And @_inundata is already working on a #rstats palette....

Read more »

Using R: When using do in dplyr, don’t forget the dot

May 21, 2017
By
Using R: When using do in dplyr, don’t forget the dot

There will be a few posts about switching from plyr/reshape2 for data wrangling to the more contemporary dplyr/tidyr. My most common use of plyr looked something like this: we...

Read more »

Shiny Applications Layouts Exercises (Part-9)

May 20, 2017
By
Shiny Applications Layouts Exercises (Part-9)

Shiny Application Layouts – Update Input In the ninth part of our series we will see the updated input scenario. This is different from the Dynamic UI example we...

Read more »

New series: R and big data (concentrating on Spark and sparklyr)

May 20, 2017
By
New series: R and big data (concentrating on Spark and sparklyr)

Win-Vector LLC has recently been teaching how to use R with big data through Spark and sparklyr. We have also been helping clients become productive on R/Spark infrastructure through...

Read more »

Sankey charts for swinging voters

Sankey charts for swinging voters

Continuing my examination of the individual level voting behaviour from the New Zealand Election Study, I wanted to look at the way individuals swap between parties, and between “did...

Read more »

R Weekly Bulletin Vol – IX

May 20, 2017
By
R Weekly Bulletin Vol – IX

This week’s R bulletin will cover topics on how to list files, extracting file names, and creating a folder using R. Hope you like this R weekly bulletin. Enjoy...

Read more »

Which science is all around? #BillMeetScienceTwitter

May 19, 2017
By
Which science is all around? #BillMeetScienceTwitter

I’ll admit I didn’t really know who Bill Nye was before yesterday. His name sounds a bit like Bill Nighy’s, that’s all I knew. But well science is all...

Read more »

New R Users group in Münster!

May 19, 2017
By
New R Users group in Münster!

This is to announce that Münster now has its very own R users group! If you are from the area, come join us (or if you happen to know someone...

Read more »

A Primer in Functional Programming in R Exercises (Part – 1)

May 19, 2017
By
A Primer in Functional Programming in R Exercises (Part – 1)

In the exercises below we cover the basics of functional programming in R( part 1 of a two series exercises on functional programming) . We consider recursion with R...

Read more »

Text Mining with R: A Tidy Approach

Text Mining with R: A Tidy Approach

About the book This book applies tidy data principles to text analysis. The aim is to present tools to make many text mining tasks easier, more effective, and...

Read more »

AzureDSVM: a new R package for elastic use of the Azure Data Science Virtual Machine

May 19, 2017
By

by Le Zhang (Data Scientist, Microsoft) and Graham Williams (Director of Data Science, Microsoft) The Azure Data Science Virtual Machine (DSVM) is a curated VM which provides commonly-used tools...

Read more »

R/Finance 2017 livestreaming today and tomorrow

May 19, 2017
By

If you weren't able to make it to Chicago for R/Finance, the annual conference devoted to applications of R in the financial industry, don't fret: the entire conference is...

Read more »

Improving automatic document production with R

May 19, 2017
By
Improving automatic document production with R

In this post, I describe the latest iteration of my automatic document production with R. It improves upon the methods used in Rtraining, and previous work on this topic...

Read more »

How to interpret correspondence analysis plots (it probably isn’t the way you think)

May 19, 2017
By
How to interpret correspondence analysis plots (it probably isn’t the way you think)

Correspondence analysis is a popular data science technique. It takes a large table, and turns it into a seemingly easy-to-read visualization. Unfortunately,...

Read more »

2017-01 Variable-width lines in R

May 18, 2017
By

This document describes the ‘vwline’ package, which provides an R interface for drawing variable-width curves. The package provides functions to draw line segments through a set of locations, or...

Read more »

Review of Efficient R Programming

May 18, 2017
By
Review of Efficient R Programming

In the crowded market space of data science and R language books, Lovelace and Gillespie’s Efficient R Programming...

Read more »

A Note on on.exit()

I have used on.exit() for several years, but it was not until the other day that I realized a very weird thing about it: you’d better follow the default...

Read more »

continental divide

May 18, 2017
By
continental divide

While the Riddler puzzle this week was anticlimactic,  as it meant filling all digits in the above division towards a null remainder, it came as an interesting illustration of...

Read more »

Character Functions (Advanced)

May 18, 2017
By
Character Functions (Advanced)

This set of exercises will help you to help you improve your skills with character functions in R. Most of the exercises are related with text mining, a statistical...

Read more »

shinydashboard 0.6.0

shinydashboard 0.6.0

Shinydashboard 0.6.0 is now on CRAN! This release of shinydashboard was aimed at both fixing bugs and also bringing the package up to speed with users’ requests and Shiny...

Read more »

New EARL Conference app

May 18, 2017
By

Get the most out of the EARL Conference with the new phone app, available on iTunes and Google play. View the agenda, speakers, and sponsors in the palm of...

Read more »

On indexing operators and composition

May 18, 2017
By
On indexing operators and composition

In this article I will discuss array indexing, operators, and composition in depth. If you work through this article you should end up with a very deep understanding of...

Read more »

Unsupervised Learning and Text Mining of Emotion Terms Using R

May 18, 2017
By
Unsupervised Learning and Text Mining of Emotion Terms Using R

Unsupervised learning refers to data science approaches that involve learning without a prior knowledge about the classification of sample data. In Wikipedia, unsupervised learning has been described as “the...

Read more »

Sponsors

Mango solutions









Zero Inflated Models and Generalized Linear Mixed Models with R

r-brain.io



www.ama.org/events-training

Quantide: statistical consulting and training

ODSC1

ODSC2

datasociety

http://www.eoda.de





CRC R books series







Six Sigma Online Training





omictools

Contact us if you wish to help support R-bloggers, and place your banner here.