733 search results for "MAPS"

R Code Examples on Graphics

August 16, 2011
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R Code Examples on Graphics

Some useful R code examples on  graphics are: Learn R Toolkit: It contains PowerPoint slideshows, videos, R scripts and data files to help Excel users move up to R. R code examples are provided for panel charts, conditional format, dot … Continue reading →

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GDAT 2011 in Review

August 13, 2011
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GDAT 2011 in Review

As usual, the Guerrilla Data Analysis Techniques (GDAT) class was a total blast. Motivated students always guarantee that. It would really help our scheduling, however, if people didn't wait until the last nanosecond to register for the class. But give...

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QTL Analysis in R

August 13, 2011
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QTL Analysis in R

See also: Part 1: QTL Analysis and Quantitative Genetics  Part 2: Statistical Methods for QTL Analysis The 'qtl' package in R allows you to implement QTL analysis using the methods I've previously discussed. The code below is adapted from Broman...

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FastCompany on telling stories with data

August 11, 2011
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An article in FastCompany today profiles two websites that excel in telling engaging stories with data: the FlowingData and OkTrends blogs. Both sites often use R for data analysis and data visualization, and have been featured here on this blog. FlowingData regularly posts guides on how to use R to recreate many of its featured visualizations with bubble charts,...

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New Rcpp master classes scheduled for New York and San Francisco

August 4, 2011
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Together with Revolution Analytics, I will be offering two more one-day classes on the Rcpp package for seamless integration of R and C++.The format will follow the workshop Romain and I gave during the tutorial day preceding this year's R/Financ...

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Tweets vs. Likes: What gets shared on Twitter vs. Facebook?

July 28, 2011
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Tweets vs. Likes: What gets shared on Twitter vs. Facebook?

It always strikes me as curious that some posts get a lot of love on Twitter, while others get many more shares on Facebook: What accounts for this difference? Some of it is surely site-dependent: maybe one blogger has a Facebook page but not a Twitter account, while another has these roles reversed. But even

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How big block trades affect stock market prices?

July 27, 2011
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How big block trades affect stock market prices?

I will be giving a presentation on “Optimal transaction cost” in Vilnius on  16  August. While preparing the presentation and looking for an optimal execution solution, a natural question arises: does the size of the trade affect stock market price? I’m sure, you would say 100 % yes. Well, you would be right, but what is

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The Luck and Skill of Scrabble

July 26, 2011
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The Luck and Skill of Scrabble

Scrabble is a game that involves both skill and luck. There's skill in knowing the words you can play and — especially — the most advantageous ways to play them. But there's also luck in the tiles you draw randomly from the bag: get saddled with a rack containing four I's and there's usually not much you can do....

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RomanM’s Method

July 22, 2011
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RomanM’s Method

I’ve succeeded in getting a version of RomanM and JeffId’s Thermal hammer working with version 1.3 of RghcnV3. This is going to be a long post because there is a lot of ground to cover. First, some errata, the “Globe” demo in V1.3 appears to have a missing line, looks like an editor bug, so

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One-liners which make me love R: Make your data dance (Hans Rosling style) with googleVis #rstats

July 14, 2011
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One-liners which make me love R: Make your data dance (Hans Rosling style) with googleVis #rstats

This inaugural post in my "one-liners which make me love R" series highlights the googleVis package which makes it easy to use the Google Visualization API from R. Thanks to googleVis, just one line of R generates the 165 lines of HTML and (mostly) JavaScript required to create a Hans Rosling-style motion chart for some sample data.

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