Statistics with R
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# Forecasting: principles and practice | A free online textbook by Rob J Hyndman and George Athanasopoulos

Forecasting: principles and practice
Dr. Guido Möser's insight:

The entire book is avail­able online and free-of-charge. Thank you guys!!

All examples are programmed in R! A very helpful resource for all interested in time series analysis etc.

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# Statistics with R

Statistics with R
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## Mad(Data)Scientist | R beats Python! R beats Julia! Anyone else wanna challenge R? #rstats

Before I left for China a few weeks ago, I said my next post would be on our Rth parallel R package. It's not quite ready yet, so today I'll post one of the topics I spoke on last night at the Berk...
Dr. Guido Möser's insight:

Nice article correcting some stereotypes in comparisons of R and Python / Julia. It always depends on the task you want so solve...

By the way, R is a full programming language (thank you for this, Norm)!

Thank you, Norm, for this excellent post!

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## R & Bioconductor - Manuals

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Very impressive and a very good overview - everything about R with and without relation to Bioconductor on a glance!

Thanks!

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## Handling_and_Processing_Strings_in_R.pdf

Dr. Guido Möser's insight:

David Smith from Revolution recently reported in a blog post (http://blog.revolutionanalytics.com/2014/03/strings-in-r-free-ebook.html) about this wonderful free ebook from Gaston Sanchez (http://gastonsanchez.com/Handling_and_Processing_Strings_in_R.pdf) about handling and processing strings in R.

Thanks David for posting that and a big thank you to Gaston for sharing this with us!

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## Making Maps with R | The Molecular Ecologist

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Thanks!

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## RTextTools

A core focus of the RTextTools project has been to make the package as accessible and user-friendly as possible. In its early iterations, the package contained dependencies such as RWeka , openNLP ,...
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RTextTools is an interesting package because it avoids using java

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## Revolutions | R skills attract the highest salaries in the US

Two recent salary surveys have shown that R language skills attract median salaries in excess of \$110,000 in the United States. In the 2014 Dice Tech Salary Survey of over 17,000 technology professionals, the highest-paid IT skill was R programming. While big-data skills in general featured strongly in the top tier, having R at the top of the list reflects the strong demand for skills to make sense of, and extract value from big data. Similarly, the recent O'Reilly Data Scientist Survey also found R skills amongst those that pay in the \$110,000-\$125,000 range (albeit amongst a much smaller and...
Dr. Guido Möser's insight:

It is never too late to start learning R!

Thanks Revolution team!

Flavio Barros's curator insight,

Pelo menos no mercado americano é assim. Como será no Brasil daqui a alguns poucos anos?

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## R - Generalized linear Models - Short Introduction | Princeton

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Interesting overview about glm in R

Thanks!

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## R snippets: Tuning optim with parscale

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Interesting example using optim function and explaining parameter parscale.

Thanks!

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## Xianjun Dong | One Tip Per Day: How to see source code of a function/method in R?

Dr. Guido Möser's insight:
Also shows helpful S4 functions - showMethods() and getMethod() Thanks!
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## Tips on Computing with Big Data in R | Revolution - Joseph Rickert

Dr. Guido Möser's insight:

Helpful Tipps from Revolution how to improve the speed of computations with Big Data in R

3. Minimize copies of the data

4. Process data in chunks

5. Compute in parallel across cores or nodes

7. Store data efficiently

8. Only read the data needed

9. Avoid loops when transforming data

10. Use C, C++, or Fortran for critical functions

11. Process data transformations in batches

12. Use row-oriented data transformations where possible

13. Handle categorical variables efficiently and with care

14. Be aware of output with the same number of rows as your input

15. Think Twice Before Sorting

Thanks Joseph and the Revolution Team!!

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## OpenCPU - New package: jsonlite. A smart(er) JSON encoder/decoder.

This week we released a new package on CRAN: jsonlite. This package is a fork of RJSONIO by Duncan Temple Lang and builds on the same parser, but uses a different mapping between R objects and JSON data.
Dr. Guido Möser's insight:

Jeroen Ooms is presenting some interesting features in new jsonlite package, especially convert to and from json!

Thanks Jeroen!

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## R snippets: Simulation speed: GNU R vs Julia

Dr. Guido Möser's insight:

R vs Julia - another speed comparison could be found directly on the official Julia page: http://julialang.org/

Seems promising to test it a little more in depth.

Thanks!

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## Introduction to R Shiny: Building web apps in R Shiny for learning and visualization

Slides: http://files.meetup.com/1685538/IntroductionRShiny.pptx R Shiny, from the people behind R Studio, allows you to quickly and easily build basic web ap...
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## CRAN Task View: Machine Learning & Statistical Learning

Dr. Guido Möser's insight:

CRAN Task Views are very valuable resources to find suitable packages out of the list of more than 5,500 (and the number is growing). Thanks also to the Task View maintainers, in this case Torsten Hothorn!

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## OpenIntro | Statistics Textbook

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OpenIntro is a free Statistics Textbook using R for examples

Thanks!

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## Read and write ESRI Shapefiles with R | NCEAS

Dr. Guido Möser's insight:

A helpful introduction with R examples how to read in shapefiles in R -  the following libraries are discussed (with R examples):

rgdal

mapstools

PBSmapping

Thank you!

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## R-python Integration | herrfz

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An interesting ipython notebook showing R-Python integration. A short but interesting one.

Thanks!

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## Jeromy Anglim's Blog | Getting Started with R Markdown, knitr, and Rstudio 0.96

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Short and excellent introduction in R Markdown, knitr, and RStudio

Thanks!

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## Noam Ross | Using Dates and Times in R

Dr. Guido Möser's insight:

Very hlupful overview over dealing with dates and times in R

Thanks!

Cathy's curator insight,

Great insight in R statistics

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## Econometrics by Simulation: Using MongoHQ to build a Shiny Hit Counter

Dr. Guido Möser's insight:

Especially the integration of MongoDB in a Shiny Application is very interesting!

Thanks!

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## Felix Schönbrodt | A short taxonomy of Bayes factors

Dr. Guido Möser's insight:

This is a very well written explanation with examples etc. of Bayesian Factors!

Thanks!

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Stan modeling language and C++ library for Bayesian inference.
NUTS adaptive HMC (MCMC) sampling, automatic differentiation,
R, shell interfaces.
Dr. Guido Möser's insight:

Stan Home: Information, Interfaces, Manual & Examples

Interfaces:

RStan (R)

PyStan (Python)

CmdStan (Command-Line Terminal)

Thank you for this excellent software package!

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## statsR4us | Murtaza Haider

Introduction to analytic intelligence with data analysis,such as logistic regression, logit models, discrete choice using SPSS, Stata, SAS, and R.
Dr. Guido Möser's insight:

A wide array of interesting statistical topics using R and other software packages.

Thanks!

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## Jared Knowles: Getting Started with Mixed Effect Models in R

Getting Started with Multilevel Modeling in R Getting Started with
Multilevel Modeling in R Jared E.
Dr. Guido Möser's insight:

lme4-package and arm ans some nice examples

Thanks!

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## R-statistics blog: data.frames

Writing about statistics with R, and open source stuff (software, data, community)
Dr. Guido Möser's insight:

Some useful blog entries for handling data.frames!

Thanks!

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