3568 search results for "gis"

Portable, personal packages

Portable, personal packages ProgrammingR had an interesting post recently about keeping a set of R functions that are used often as a gist on Github, and sourceing that file at the beginning of R analysis scripts. There is nothing inherently wrong with this, but it does end up cluttering the user workspace, and there is no...

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Portable, personal packages

Portable, personal packages ProgrammingR had an interesting post recently about keeping a set of R functions that are used often as a gist on Github, and sourceing that file at the beginning of R analysis scripts. There is nothing inherently wrong with this, but it does end up cluttering the user workspace, and there is no...

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MCMSki IV, Jan. 6-8, 2014, Chamonix (news #10)

October 14, 2013
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MCMSki IV, Jan. 6-8, 2014, Chamonix (news #10)

This a final reminder about the October 15 deadlines for MCMSki IV: First, the early bird rate for the registration ends up on October 15. Second, the young investigator travel support can only be requested up to October 15 as well. (For those waiting for the decision about the support to register, the registration deadline will be

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UK House Prices vs. Household Incomes

October 13, 2013
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UK House Prices vs. Household Incomes

There seems nothing the British press likes more than a good house price story. Both the OECD and 'The Economist' studies quoted in The Telegraph recently use the house price to household income ratio as a consideration of affordability and sustainabil...

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Fearsome Engines Part 2: Innovations and new features

October 13, 2013
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Fearsome Engines Part 2: Innovations and new features

There are lots of R engines emerging! I’ve interviewed members of each of the teams involved in these projects. In part 1 of this series, we covered the motivation of each project. This part looks at the technical achievements and new features. Many of the innovations are performance improvements, reflecting the primary goal of several

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Prices of houses in the Netherlands

October 13, 2013
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Prices of houses in the Netherlands

The last couple of days I read a number of times about stabilization in house prices which had been dropping due to the crisis. And you get hit by numbers such as change against Q2 2013 or Q3 2012. These are accompanied by reasons why this or that quarter may be special so changes may be off. To be...

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October 24: 4th MilanoR meeting. Agenda

October 11, 2013
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October 24: 4th MilanoR meeting. Agenda

October 24, 2013 - 18:00 - 21:00 Fiori Oscuri Bistrot & Bar (www.fiorioscuri.it) Via Fiori Oscuri, 3 - Milano (Zona Brera) 18.00 - 18.15 Registration 18.15 - 18.45 Welcome presentation R and Microsoft Office Nicola Sturaro, Consultant at Quantide 18.45 - … Continue reading →

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Custom Legend in R

October 10, 2013
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Custom Legend in R

This particular custom legend was designed with three purposes: To effectively bin values based on a theoretical minimum and maximum value for that variable (e.g. -1 and 1 or 0 and 100) To use a different interval notation than the default To handle NA values Even though this particular legend was designed with those needs, it should be simple to extrapolate from...

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Calculating AUC the hard way

October 10, 2013
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Calculating AUC the hard way

The Area Under the Receiver Operator Curve is a commonly used metric of model performance in machine learning and many other binary classification/prediction problems. The idea is to generate a threshold independent measure of how well a model is able to distinguish between two possible outcomes. Threshold independent here just means that for any model

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Tomorrow: Webinar on Time-to-Event Models

October 9, 2013
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We're thrilled to have John Wallace and Tess Nesbitt from DataSong join our Fall webinar series tomorrow, with a great presentation on time to event models. If you're trying to predict when an event will occur (for example, a consumer buying a product) or trying to infer why events occur (what were the factors that led to a component...

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