793 search results for "maps"

Watch Sandy in “R” (Including Forecast Cone)

October 28, 2012
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Watch Sandy in “R” (Including Forecast Cone)

As indicated in the code comments, Google took down the cone KML files. I’ll be changing the code to use the NHC archived cone files later tonight NOTE: There is significantly updated code on github for the Sandy ‘R’ dataviz. This is a follow-up post to the quickly crafted Watch Sandy in “R” post last

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Watch “Sandy” In R

October 27, 2012
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Watch “Sandy” In R

UPDATE: Significantly updated code on githubWell, a couple folks asked how to make it more “centered” on the hurricane and stop the labels from chopping off, so I modified the previous code a bit to show how to do that. As indicated in the code comments, Google took down the cone KML files. I’ll be

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Palettes in R

October 25, 2012
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Palettes in R

In its simplest form, a palette in R is simply a vector of colors. This vector can be include the hex triplet or R color names.The default palette can be seen through palette(): > palette("default") # you'll only need this line if you've previ...

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ChIP-seq Analysis with Bioconductor

October 22, 2012
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ChIP-seq Analysis with Bioconductor

Often scientists are interested in finding genome-wide binding site of their protein of interest. R offers easy way to load and process the sequence files coming from ChIP-seq experiment. During the next weeks I’m going to present a pipeline that … Continue reading →

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Agreement between code readability ratings given by students

October 13, 2012
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Agreement between code readability ratings given by students

I have previously written about how we know nothing about code readability and questioned how the information content of expressions might be calculated. Buse and Weimer ran a very interesting experiment that asked subjects to rate short code snippets for readability (somebody please rerun this experiment using professional software developers). I’m interested in measuring how

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Nine lightning talks on R

October 12, 2012
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At Tuesday's Bay Area R User Group meetup, nine speakers gave five-minute talks on various aspects of R. Revolution Analytics' Luba Gloukhov was one of the presenters, and also provides the summary of the talks below. Links to the slides are included where available for you to check out. Ariel Faigon: Chrestomathy with R Ariel walked us through his...

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Pilot Study: Small Town Land Surface Temperature

October 11, 2012
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Pilot Study: Small Town Land Surface Temperature

Introduction Zhang and Imhoff (2010)  pdf here utilized NLCD impervious surface area (ISA), Olson biomes, and MODIS Land Surface temperature (LST) to estimate the magnitude of UHI in large cities across the US.  Peng  employed a   similar approach in studying 419 large cities ( population greater than 1m ) around world. Peng’s work suggests a limit

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Making Color Ramps in Matlab

October 9, 2012
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When visualizing an array of data in a heatmap, a good color map makes a world of difference.Thanks to my work in 'omics (i.e. transcriptomics - microarrays and RNASeq) I've looked at a lot of heatmaps over the past couple of years, and generated quite...

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What’s in My Pocket? Read it now! (or Read It Later)

October 9, 2012
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What’s in My Pocket? Read it now! (or Read It Later)

IntroductionYou know what's awesome? Pocket.I mean, sure, it's not the first. I think Instapaper existed a little before (perhaps). And there are alternatives, like Google Reader. But Pocket is still my favorite. It's pretty awesome at what it does.Pocket (or Read It Later, as it used to be known) has fundamentally changed the...

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In case you missed it: September 2012 Roundup

October 8, 2012
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In case you missed them, here are some articles from September of particular interest to R users. You can now browse the R-devel sources and changelogs at GitHub. R is used to create a 3-D animation of the Antarctic ice cap. At the DataWeek SF conference, R users from eBay, Intuit, Minted and other companies describe how R is...

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