April 2017

Microsoft R Server 9.1 now available

April 19, 2017 | David Smith

During today's Data Amp online event, Joseph Sirosh announced the new Microsoft R Server 9.1, which is available for customers now. In addition the updated Microsoft R Client, which has the same capabilities for local use, is available free for everyone on both Windows and — new to this update — Linux. This ... [Read more...]

Machine Learning Using Support Vector Machines

April 19, 2017 | Perceptive Analytics

Support Vector Machines (SVM) is a data classification method that separates data using hyperplanes. The concept of SVM is very intuitive and easily understandable. If we have labeled data, SVM can be used to generate multiple separating hyperplanes such that the data space is divided into segments and each segment ...
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Shiny Application Layouts Exercises (Part-1)

April 19, 2017 | Euthymios Kasvikis

Shiny Application Layouts part 1 Welcome to the first part of our new series “Shiny Application Layouts”. As you can understand from the title we will see how to organize the output of our application in various ways. For this reason we will build together 10 simple apps that will help you ... [Read more...]

quantmod 0.4-8 on CRAN

April 19, 2017 | Joshua Ulrich

I pushed a bug-fix release of quantmod to CRAN last night. The major changes were togetSymbols.FRED (#141)getSymbols.oanda (#144)getSymbols.yahoo (#149)All three providers made breaking changes to their URLs/interfaces.getSymbols.google also got some ... [Read more...]

Loading and visualizing Shapefiles in R

April 19, 2017 | Xavier

Geographical Information Systems such as QGIS are common in the typical archaeologist’s toolbox. However, the complexities of our datasets mean that we need additional tools to identify patterns in time and space. Imagine that you are working with a set of points in a vector format such as a ... [Read more...]

R Quick Tip: Table parameters for rmarkdown reports

April 19, 2017 | Steph

The recent(ish) advent of parameters in rmarkdown reports is pretty nifty but there’s a little bit of behaviour that can come in handy but doesn’t come across in the documentation. You can use table parameters for rmarkdown reports. Previously, if The post R Quick Tip: Table parameters ... [Read more...]

R for Enterprise: Understanding R’s Startup

April 18, 2017 | R Views

R’s startup behavior is incredibly powerful. R sets environment variables, loads base packages, and understands whether you’re running a script, an interactive session, or even a build command. Most R users will never have to worry about changing R’s startup process. In fact, for portability and reproducibility ...
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R for Enterprise: Understanding R’s Startup

April 18, 2017 | R Views

R’s startup behavior is incredibly powerful. R sets environment variables, loads base packages, and understands whether you’re running a script, an interactive session, or even a build command. Most R users will never have to worry about changing R’s startup process. In fact, for portability and reproducibility ...
[Read more...]

Group-By Modeling in R Made Easy

April 18, 2017 | Bob Muenchen

There are several aspects of the R language that make it hard to learn, and repeating a model for groups in a data set used to be one of them. Here I briefly describe R’s built-in approach, show a much … Continue reading →
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MODIStsp (v 1.3.2) is on CRAN !

April 18, 2017 | Lorenzo Busetto

We are glad to report that MODIStsp is now also available on CRAN ! From now on, you can therefore install it by simply using:install.packages("MODIStsp")In v 1.3.2 we also added the functionality to automatically apply scale and offset coefficients on MODIS original values according with the specifications of ...
[Read more...]

Release ‘open’ data from their PDF prisons using tabulizer

April 18, 2017 | Thomas J. Leeper

There is no problem in science quite as frustrating as other peoples' data. Whether it's malformed spreadsheets, disorganized documents, proprietary file formats, data without metadata, or any other data scenario created by someone else, scientists have taken to Twitter to complain about it. As a political scientist who regularly encounters ... [Read more...]

MODIStsp (v 1.3.2) is on CRAN !

April 17, 2017 | Posts on Lorenzo Busetto Website & Blog

We are glad to report that MODIStsp is now also available on CRAN ! From now on, you can therefore install it by simply using: install.packages("MODIStsp") In v 1.3.2 we also added the functionality to automatically apply scale and offset coefficients on MODIS original values according with the specifications of ...
[Read more...]

Le Monde puzzle [#1003]

April 17, 2017 | xi'an

A purely arithmetic Le Monde mathematical puzzle: Find the four integers w, x, y, z such that the four smallest pairwise sums among the six pairwise sums are 59, 65, 66, and 69. Similarly, find the four smallest of the five integers v, x, y, z such that the five smallest pairwise sums among ...
[Read more...]

Generating Dynamic Nomograms using DynNom

April 17, 2017 | Jaynal Abedin

Nomograms are useful computational tools for model visualisation, graphical assessment of variable importance and the calculation of predicted values.  The nomogram function in the rms package is a popular way of creating (static) nomograms for a variety of regression models. For example, the following code will generate a nomogram from ...
[Read more...]
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