3222 search results for "Map"

Trading The Odds Volatility Risk Premium: Addressing Data Mining and Curve-Fitting

November 19, 2014
By
Trading The Odds Volatility Risk Premium: Addressing Data Mining and Curve-Fitting

Several readers, upon seeing the risk and return ratio along with other statistics in the previous post stated that the … Continue reading →

Read more »

RcppAnnoy 0.0.3

November 18, 2014
By

Hours after the initial blog post announcing the first release of the new package RcppAnnoy, Qiang Kou sent us a very nice pull request adding mmap support in Windows. So a new release with Windows support is on now CRAN, and Windows binaries should ...

Read more »

Moving The Earth (well, Alaska & Hawaii) With R

November 16, 2014
By
Moving The Earth (well, Alaska & Hawaii) With R

In a previous post we looked at how to use D3 TopoJSON files with R and make some very D3-esque maps. I mentioned that one thing missing was moving Alaska & Hawaii a bit closer to the continental United States and this post shows you how to do that. The D3 folks have it easy.

Read more »

A look at the igraph package

November 13, 2014
By
A look at the igraph package

by Joseph Rickert The igraph package has become a fundamental tool for the study of graphs and their properties, the manipulation and visualization of graphs and the statistical analysis of networks. To get an idea of just how firmly igraph has become embedded into the R package ecosystem consider that currently igraph lists 72 reverse depends, 59 reverse imports...

Read more »

In case you missed it: October 2014 Roundup

November 12, 2014
By

In case you missed them, here are some articles from October of particular interest to R users. R hits a new milestone with 6,000 CRAN packages, and R 3.1.2 released. Revolution Analytics announces Revolution R Open, a supported and enhanced downstream distribution of R. (Learn more at the webinar on Wednesday November 12.) Some benchmarks on the performance improvements...

Read more »

BlogAnalytics 2014-11-10 12:03:00

November 10, 2014
By
BlogAnalytics 2014-11-10 12:03:00

View Confidence Interval DynamicallyThis is a simple effort for dynamic view of confidence interval in a normal distribution. The  link provides a interactive interface which helps users to understand normal distribution and confidence interv...

Read more »

solar navigation

November 9, 2014
By
solar navigation

Introduction Solar altitude is a function of time, longitude and latitude, and so it can be possible to infer location based on measuring altitude as a function of time. This form of solar navigation can be based on sunrise and sunset times, at least on non-equinox days. I have explored this for a school-based project I call “SkyView” involving light sensors and Arduino microcontrollers,...

Read more »

geocodeHERE 0.1 is on CRAN

November 6, 2014
By

In my previous blog post, I detailed how I created my first R package called geocodeHERE. This package is a convenient wrapper for Nokia's HERE geocoding API. The cool thing about this API is that it allows for bulk geocoding. So, instead of doing n API calls to geocode n addresses, you can do it with...

Read more »

Faster, easier, and more reliable character string processing with stringi 0.3-1

November 6, 2014
By

A new release of the stringi package is available on CRAN (please wait a few days for Windows and OS X binary builds). # install.packages("stringi") or update.packages() library("stringi") stringi is an R package providing (but definitely not limiting to) equivalents…Read more ›

Read more »

Improving R Data Visualisations Through Design

November 6, 2014
By
Improving R Data Visualisations Through Design

When I start an R class, one of my opening lines is nea

Read more »

Sponsors

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)