2686 search results for "map"

Convert IP addresses to geolocation, latitude and longitude etc etc

May 29, 2013
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Convert IP addresses to geolocation, latitude and longitude etc etc

Whoa! Now this is cool. It turns out there is a database at freegeoip.net which you can query for the location of a particular IP address. And as it has a neat little API for batches of IPs, you can … Continue reading →

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Analysis of Cable Morning Trade Strategy

May 29, 2013
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Analysis of Cable Morning Trade Strategy

A couple of years ago I implemented an automated trading algorithm for a strategy called the “Cable Morning Trade”. The basis of the strategy is the range of GBPUSD during the interval 05:00 to 09:00 London time. Two buy stop orders are placed 5 points above the highest high for this period; two sell stop

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R/Finance 2013 Review

May 28, 2013
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It's been one week since the 5th Annual R/Finance conference, and I finally feel sufficiently recovered enough to share my thoughts. The conference is a two-day whirlwind of applied quantitative finance, fantastic networking, and general geekery.The comments below are based on my personal experience.  If I don't comment on a seminar or presentation, it doesn't mean I...

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The heat is on…. or is it? Trend Analysis of Toronto Climate Data

May 27, 2013
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The heat is on…. or is it? Trend Analysis of Toronto Climate Data

The following is a guest post from Joel Harrrison, PhD, consulting Aquatic Scientist.For a luddite like me, this is a big step – posting something on the inter-web.  I’m not on Facebook.  I don’t know what Twitter is.  Hell, I don’t even own a smartphone.  But, I’ve been a devoted follower of Myles’ blog for some time,...

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Writing a Minimal Working Example (MWE) in R

May 27, 2013
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Writing a Minimal Working Example (MWE) in R

How to Ask for Help using R How to Ask for Help using R The key to getting good help with an R problem is to provide a minimally working reproducible example (MWRE). Making an MWRE is really easy with R, and it will help ensure that...

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Log Transformations for Skewed and Wide Distributions

May 27, 2013
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Log Transformations for Skewed and Wide Distributions

This is a guest article by Nina Zumel and John Mount, authors of the new book Practical Data Science with R. For readers of this blog, there is a 50% discount off the “Practical Data Science with R” book, simply by using the code pdswrblo when reaching checkout (until …Read more »

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Creating a presence-absence raster from point data

May 27, 2013
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Creating a presence-absence raster from point data

I’m working on generating species distribution models at the moment for a few hundred species. Which means that I’m trying to automate as many steps as possible in R to avoid having to click buttons hundreds of times in ArcView. … Continue reading →

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BISON USGS species occurrence data

May 27, 2013
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BISON USGS species occurrence data

The USGS recently released a way to search for and get species occurrence records for the USA. The service is called BISON (Biodiversity Information Serving Our Nation). The service has a web interface for human interaction in a browser, and two APIs (application programming interface) to allow machines to interact with their database. One of the...

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BISON USGS species occurrence data

May 27, 2013
By
BISON USGS species occurrence data

The USGS recently released a way to search for and get species occurrence records for the USA. The service is called BISON (Biodiversity Information Serving Our Nation). The service has a web interface for human interaction in a browser, and two APIs (application programming interface) to allow machines to interact with their database. One of the...

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Down and Dirty Forecasting: Part 2

May 24, 2013
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Down and Dirty Forecasting: Part 2

This is the second part of the forecasting exercise, where I am looking at a multiple regression. To keep it simple I chose the states that boarder WI and the US unemployment information for the regression. Again this is a down and dirty analysis, I wo...

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