37 search results for "sandy"

Text Mining Gun Deaths Data

March 13, 2014
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Text Mining Gun Deaths Data

In this post I will explore public data being collected by Slate.  I previously released code using a much early set of this data demonstrating how to turn this data into an animated map.This data began collection as a public response to the horri...

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Weisberg Growth Model

November 28, 2013
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Weisberg Growth Model

A fishR user asked me if I had Weisberg Linear Growth Model (LGM) vignette.  In the past, the Weisberg LGM referred to the fixed-effects models described in Weisberg (1993) and implemented in software that was written in XLISP-STAT and distributed … Continue reading →

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An OpenBLAS-based Rblas for Windows 64: Step-by-step

October 24, 2013
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As a result of my previous post, I’ve had a number of requests to describe how I compiled the BLAS, so I’ll do so below. Of course, the necessary caveats, I am not a programmer nor do I play one on the radio so I probably cannot debug any issue anyone may have. Use the Read the full...

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An OpenBLAS-based Rblas for Windows 64

October 22, 2013
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An OpenBLAS-based Rblas for Windows 64

One of the more important pieces of software that powers R is its BLAS, which stands for Basic Linear Algebra Subprograms. This is the suite of programs which, as its name implies, performs basic linear algebra routines such as vector copying, scaling and dot products; linear combinations; and matrix multiplication. It is the engine on Read the full...

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Tracking the 2013 Hurricane Season

October 21, 2013
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Tracking the 2013 Hurricane Season

With it being the end of hurricane season it’s only appropriate to do a brief summary of the activity this year.   It’s been a surprisingly low-key season as far as hurricanes are concerned.  There have been only a few hurricanes and the barometric pressure of any hurricane this season has not even come close

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Visualizing Katrina’s strongest winds, with R

August 13, 2013
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Visualizing Katrina’s strongest winds, with R

Here's a new picture of the devastation wrought by Katrina in 2005. This image shows the maximum wind speeds of the hurricane, not at any particular point of time, but over the duration of the entire storm: The data come from NOAA's H*Wind project, which makes windspeed data from sensors on the ground and floating in the ocean available...

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R et Twitter

April 22, 2013
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R et Twitter

(This article was first published on Learning Data Science , and kindly contributed to R-bloggers) On va dans ce post, illustrer une utilisation simple des packages twitteR, StreamR, tm qui permettent faire du textmining. En réalité, les deux premiers permettent de récuperer les tweets et de faire des comptages simples et complexes et le dernier permet de faire du...

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from OTU table to HEATMAP!

February 23, 2013
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from OTU table to HEATMAP!

In this tutorial you will learn: what is a heatmap how to create a clean, highly customizable heatmap using heatmap.2 in the gplots package in R how to remove samples with poor output (not very many sequences) how to rearrange your samples by a metadata category how to make a color coded bar above the heatmap

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To pre-pay or not to pre-pay for gas when renting a car?

February 20, 2013
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To pre-pay or not to pre-pay for gas when renting a car?

One question we get asked a lot is whether it's worth it to pre-pay for the tank of gas when renting a car.At first, blush it seems like something you should never do. In the best case, you pay market rate for gas, and in the worst case, you pay for a tank of gas you never consume (what...

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Working with R2MLwiN Part 2

February 19, 2013
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Specifying the modelThis is the second part of a series of notes demonstrating use of the R package, R2MLwiN, an R command interface to the multilevel modelling software package, MLwiN (see the MLwiN site for getting access to MLwiN). The first set of notes showed how to get started with R2MLwiN. In these notes,...

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