3073 search results for "Map"

What are the most popular keywords of CRAN packages?

July 24, 2014
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(This article is adapted to the latest version of rvest package.) A large proportion of R's power should be attributed to the enormous amount of extension packages. Many packages are published to CRAN. These packages cover a wide range of fields. In this post, I'll show you how to use R to scrap the titles of all CRAN packages from...

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再不相信预编译的R

July 23, 2014
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去年ubuntu下apt-get了R-3.0.2, 用了没多久就发现了system命令有问题,通常情况下调用系统命令是正常的,但是我调用bowtie的时候,就会报错: Warning: Could not open read file "/tmp/8156.inpipe1" for reading; skipping... Read More: 2553 Words Totally

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Mideast Graph 3: Slate Middle East Friendship

July 23, 2014
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Mideast Graph 3: Slate Middle East Friendship

Slate recently published a great info-graphic about Middle-East Relationships. It shows the relationships (Friend, Enemy, or Complicated) of 13 countries / organizations and the relationships between each pair. One draw back of the chart is that it doe...

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Flood fill a region of an active device in R

July 23, 2014
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Flood fill a region of an active device in R

The following is a function to "flood fill" a region on the active plotting device. Once called, the user will be asked to click on the desired target region. The flood fill algorithm then searches neighbors in 4 directions of the target cell (down, le...

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Uncovering the Preferences Shaping Consumer Data: Matrix Factorization

July 23, 2014
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Uncovering the Preferences Shaping Consumer Data: Matrix Factorization

How do you limit your search when looking for a hotel? Those trying to save money begin with price. Members of hotel reward programs focus on their brand. At other times, location is first to narrow our consideration set. What does hotel search re...

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Rcpp11 3.1.1

July 22, 2014
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R 3.1.1 was released a few days ago, and as part of the policy we are trying to follow for Rcpp11 releases, here is Rcpp11 3.1.1. Sorry for the 12 days delay, but I was away in California, and Rcpp11 travelled with me, so I could not properly test the ...

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The Rise and Fall of the name Jennifer

July 19, 2014
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The Rise and Fall of the name Jennifer

A recent fascinating post by Analysis at Large got me interested in naming trends analysis. The original post used Social Security data by state to map out the more frequent names by state. While this sounded interesting it turned out a single name (yo...

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US Names by State: Part I (Mary is everywhere!)

July 18, 2014
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US Names by State: Part I (Mary is everywhere!)

I was browsing the Social Security Administration’s website and found a link for the open government initiative (http://www.ssa.gov/open/data/).  There seems to be a fair amount of interesting data here, but I grabbed the names of people born in the US … Continue reading →

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Why hadn’t I written a function for that?

July 16, 2014
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Why hadn’t I written a function for that?

I’m often typing the same bits of code over and over. Those bits of code really should be made into functions. For example, I’m still using base graphics. (ggplot2 is on my “to do” list, really!) Often some things will be drawn with a slight overlap of the border of the plotting region. And in

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Taking Inventory: Analyzing Data When Most Answer No, Never, or None

July 15, 2014
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Taking Inventory: Analyzing Data When Most Answer No, Never, or None

Consumer inventories, as the name implies, are tallies of things that consumers buy, use or do. Product inventories, for example, present consumers with rather long lists of all the offerings in a category and ask which or how many or how often they bu...

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