1150 search results for "MAPS"

Results of the Readers’ Survey

August 5, 2014
By
Results of the Readers’ Survey

 First of all, let me say “Thank You” to all of the 357 people who completed the survey. I was hoping for 100, so needless to say the response blew away my expectations. This endeavor seems like a worthwhile effort to do once a year. Next year I will refine the...

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Parsing Domain Names in R with tldextract

August 4, 2014
By

The R Language is really good at data and statistical analysis, but when it comes to working with information security data it has a few holes that need plugging up. Bob has been doing a couple of posts using Rcpp to do things like Basic DNS Lookups, TXT lookups, and IPv4 Conversions. I wanted to add to some of that work with a quick package...

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The odds of a cluster of airplane accidents

August 2, 2014
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The odds of a cluster of airplane accidents

Recently, there have been a lot of airplane accidents. July, 17th 2014, Hrabove, Ukraine, Malaysia Airlines, Boeing 777, fatalities 298 (/298) July, 23rd 2014, Magong, Taiwan, TransAsia Airways, ATR 72-500, fatalities 47 (/58) July, 24th 2014, Aguelhok, Mali, Air Algerie, Mc Donnell Douglas MD-83, fatalities 116 (/116) It is simple to find a lot of datasets about airplane crashes....

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Variable Selection in Market Segmentation: Clustering or Biclustering?

July 29, 2014
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Variable Selection in Market Segmentation: Clustering or Biclustering?

Will you have that segmentation with one or two modes?The data matrix for market segmentation comes to us with two modes, the rows are consumers and the columns are variables. Clustering uses all the columns to transform the two-mode data matrix (row a...

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Revisiting package dependencies

July 29, 2014
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Revisiting package dependencies

by Andrie de Vries In my previous post I wrote about how to identify and visualize package dependencies. Within hours, Duncan Murdoch (member of R-core) identified some discrepancies between my list of dependencies and the visualisation. Since then, I fixed the dispecrancies. In this blog post I attempt to clarify the issues involved in listing package dependencies. In miniCRAN...

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Clipping spatial data in R

July 28, 2014
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Clipping spatial data in R

This miniature vignette shows how to clip spatial data based on different spatial objects in R and a ‘bounding box’. Spatial overlays are common in GIS applications and R users are fortunate that the clipping and spatial subsetting functions are mature and fairly fast. We’ll also write a new function called gClip(), that will make clipping by bounding boxes...

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Guns are Cool – States

July 26, 2014
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Guns are Cool – States

Last week I looked at time effects of the shootingtracker database. This week I will look at the states. Some (smaller) states never made it on the database. Other states, far too frequently. The worst of these California. After correcting for populati...

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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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Creating an Interactive Map of Craft Breweries in VA Using the plotly R Package

July 18, 2014
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Creating an Interactive Map of Craft Breweries in VA Using the plotly R Package

Well folks, another new year’s resolution down the drain. I was initially shooting for a post each month for 2014. More projects came. Plates were full. Plates were emptied. More plates were filled again. I think I will just alter my resolution to 12 posts this year. That’s a fair compromise with myself, right? That’s

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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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