April 2016

On Nested Models

April 26, 2016 | 0 Comments

We have been recently working on and presenting on nested modeling issues. These are situations where the output of one trained machine learning model is part of the input of a later model or procedure. I am now of the opinion that correct treatment of nested models is one of ...
[Read more...]

How to Install R on Linux Ubuntu 16.04 Xenial Xerus

April 26, 2016 | 0 Comments

The long-awaited new Ubuntu LTS Xenial Xerus was released last week. I wrote a tutorial on installing R and R-Studio on the old 14.04 LTS, so I figured I’d update that document. Not much has changed for the new 16.04 version but there are new repositories. Install R-Base You can find ...
[Read more...]

Password Input with getPass

April 26, 2016 | 0 Comments

As of this morning, the getPass package version 0.1-1 is available on CRAN. The package offers a portable way to read user input without echoing the text, for the purposes of reading passwords. Some screenshots from various platforms are given below. ...
[Read more...]

Password Input with getPass

April 26, 2016 | 0 Comments

As of this morning, the getPass package version 0.1-1 is available on CRAN. The package offers a portable way to read user input without echoing the text, for the purposes of reading passwords. Some screenshots from various platforms are given below.... [Read more...]

yorkr ranks T20 batsmen and bowlers

April 26, 2016 | 0 Comments

Here is another short post which ranks T20 batsmen and bowlers. These are based on match data from Cricsheet. The ranking is done on average runs and average strike rate for batsmen and average wickets and average economy rate for bowlers. This post has also been published in RPubs RankT20...
[Read more...]

Effect of normalization of data

April 26, 2016 | 0 Comments

Clustering (distributed in particular) can  be dependent on normalization of data. With usage of distance models, data – when clustered – can produce different results or even different clustering models. A simple every day example can produce two different results. For example, measuring units.  For this purpose we will create two R ...
[Read more...]

New package: weightr (v. 1.0.0)

April 26, 2016 | 0 Comments

[social4i size=”large” align=”float-right”]   This is a re-post of Dr. Jack Vevea email to the R packages mailing list Greetings, R users! I’m excited and pleased [Read more...]

New R package to access World Bank data

April 26, 2016 | 0 Comments

Staying on top of new CRAN packages is quite a challenge nowadays. However, thanks to Dirk’s CRANberries service I occasionally spot a new gem, such as wbstats, which appeared on CRAN last week. Similarly to the WDI package, wbstats offers an interface to the World Bank database. With the ... [Read more...]

Detecting Structural Breaks in China’s FX Regime

April 26, 2016 | 0 Comments

Edit: This post is in its infancy. Work is still ongoing as far as deriving insight from the data is concerned. More content and economic insight is expected to be added to this post as and when progress is made in that direction. This is an attempt to detect structural ...
[Read more...]

New R package to access World Bank data

April 26, 2016 | 0 Comments

Staying on top of new CRAN packages is quite a challenge nowadays. However, thanks to Dirk's CRANberries service I occasionally spot a new gem, such as wbstats, which appeared on CRAN last week. Similarly to the WDI package, wbstats offers an interface to the World Bank database.With the functions ... [Read more...]

RcppMgsPack 0.1.0

April 25, 2016 | 0 Comments

Over the last few months, I have been working casually on a new package to integrate MessagePack with R. What is MessagePack, you ask? To quote its website, "It's like JSON, but fast and small." Or in more extended terms: MessagePack is an efficient binary serialization format. It lets you ... [Read more...]

The five element ninjas approach to teaching design matrices

April 25, 2016 | 0 Comments

Design matrices unite seemingly disparate statistical methods, including linear regression, ANOVA, multiple regression, ANCOVA, and generalized linear modeling. As part of a hierarchical Bayesian modeling course that we offered this semester, we wanted our students to learn about design matrices to facilitate model specification and parameter interpretation. Naively, I thought ... [Read more...]

Webinar April 28: Effective Graphs with Microsoft R Open

April 25, 2016 | 0 Comments

Naomi Robbins, author of Creating More Effective Graphs and Forbes contributor has teamed up with daughter Dr Joyce Robbins to present a new webinar this Thursday April 28, Creating Effective Graphs with Microsoft R Open. The webinar will demonstrate how to create a variety of useful graphics with R: comparisons, distributions, ... [Read more...]

Just plot this…

April 25, 2016 | 0 Comments

png("goodbye.png", height = 625, width = 500)par(col = "purple")plot(1, 1, xlim = c(0,800), ylim = c(0,1600), type = "n", bty = "n", xaxt = "n", yaxt = "n", xlab = "", ylab = "")symbols(x = 400, y = 1200, circles = 400, add = T, lwd = 40)lines(x = c(40... [Read more...]

Free Workshop: Mapping Open Data in R

April 25, 2016 | 0 Comments

On May 17 I will be running a free workshop titled Mapping Open Data in R. The workshop will be in Berkeley, CA and is open to the public. If you have an interest in the subject matter then I hope that you will attend! Here is a sample of the ...
[Read more...]

yorkr ranks IPL batsmen and bowlers

April 25, 2016 | 0 Comments

Here is a short post which ranks IPL batsmen and bowlers. These are based on match data from Cricsheet. Ranking batsmen and bowlers in IPL is more challenging as the players can belong to different teams in different years. Hence I create a combined data frame of the batsmen and ...
[Read more...]

Learning R for Data Visualization [Video]

April 25, 2016 | 0 Comments

Last year Packt asked me to develop a video course to teach various techniques of data visualization in R. Since I love the idea of video courses and tutorials, and I also enjoy plotting data, I readily agreed.The result is this course, published last ...
[Read more...]

Learning R for Data Visualization [Video]

April 25, 2016 | 0 Comments

Last year Packt asked me to develop a video course to teach various techniques of data visualization in R. Since I love the idea of video courses and tutorials, and I also enjoy plotting data, I readily agreed.The result is this course, published last ...
[Read more...]
1 2 3 4 5 13

Never miss an update!
Subscribe to R-bloggers to receive
e-mails with the latest R posts.
(You will not see this message again.)

Click here to close (This popup will not appear again)