3155 search results for "Map"

Stay on track: Plotting GPS tracks with R

September 18, 2014
By
Stay on track: Plotting GPS tracks with R

Many GPS devices and apps have the capability to track your current position via GPS. If you go walking, running, cycling, flying or driving, you can take a look at your exact route and your average speed.Some of these devices or apps also allow you to...

Read more »

The Traveling Salesman with Simulated Annealing, R, and Shiny

September 17, 2014
By
The Traveling Salesman with Simulated Annealing, R, and Shiny

I built an interactive Shiny application that uses simulated annealing to solve the famous traveling salesman problem. You can play around with it to create and solve your own tours at the bottom of this post. Here's an animation of the annealing process finding the shortest path through the 48 state capitals of the contiguous...

Read more »

How accurate is Next Bus III: getting the answers

September 16, 2014
By
How accurate is Next Bus III: getting the answers

So now that we’ve collected data from the web and wrangled it into something useful, what can we say about how accurate Next Bus is? This post is about the “making of the analysis” … which might be rather boring to those non data geeks (normal people). If you’re just interested in the story and the pictures,...

Read more »

Mortality Rate of Children Under 5 and Gender Differences

September 16, 2014
By

This post displays two animated choropleths. One for global mortality rates for children under 5 (per 1000 live births) and the second for the difference in global mortality rates for males and female children under 5 (per 1000). This was put together after my wife sent a link to this optimistic story on NPR’s site. It was regarding...

Read more »

3D Sine Wave

September 16, 2014
By
3D Sine Wave

Had a headache last night, so decided to take things easy and just read posts Google+. Then I came across this post which seems interesting so I thought I would play around before I head to bed. ...

Read more »

PCA / EOF for data with missing values – a comparison of accuracy

September 15, 2014
By
PCA / EOF for data with missing values – a comparison of accuracy

Not all Principal Component Analysis (PCA) (also called Empirical Orthogonal Function analysis, EOF) approaches are equal when it comes to dealing with a data field that contain missing values (i.e. "gappy"). The following post compares several methods by assessing the accuracy of the derived PCs to reconstruct the "true" data set, as was similarly...

Read more »

Departure of 2014 US Open Tennis Players

September 14, 2014
By
Departure of 2014 US Open Tennis Players

This was generated using R and ggplot2. The code and details are coming soon. Departure of 2014 US Open Tennis Players was originally published by Vivek Patil at Adventures in Analytics and Visualization on September 15, 2014.

Read more »

Using colorized PNG pictograms in R base plots

September 12, 2014
By
Using colorized PNG pictograms in R base plots

Today I stumbled across a figure in an explanation on multiple factor analysis which contained pictograms.   Figure 1 from Abdi & Valentin (2007), p. 8. I wanted to reproduce a similar figure in R using pictograms and additionally color them e.g. by group membership . I have almost no knowledge about image processing, so

Read more »

Generalized Double Pareto Priors for Regression

September 10, 2014
By
Generalized Double Pareto Priors for Regression

This post is a review of the “GENERALIZED DOUBLE PARETO SHRINKAGE” Statistica Sinica (2012) paper by Armagan, Dunson and Lee. Consider the regression model (Y=Xbeta+varepsilon) where we put a generalized double pareto distribution as the prior on the regression coefficients (beta). The GDP distribution has density $$begin{equation} f(beta|xi,alpha)=frac{1}{2xi}left( 1+frac{|beta|}{alphaxi} right)^{-(alpha+1)}. label{} end{equation}$$ GDP as Scale The post

Read more »

Fun with Bordered Cubes

September 9, 2014
By
Fun with Bordered Cubes

I am interested in generating 3D reasoning items in R. To this end I have adapted some of the awesome functions built in the rgl library to my ends. My new function is 'cube' and it takes position and automatically sizes itself as a 1x1x1 cube though t...

Read more »

Sponsors

Mango solutions



plotly webpage

dominolab webpage



Zero Inflated Models and Generalized Linear Mixed Models with R

Quantide: statistical consulting and training

datasociety

http://www.eoda.de





ODSC

ODSC

CRC R books series





Six Sigma Online Training









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

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)