8 search results for "predictive modelling fun with the caret package"

Predictive modelling fun with the caret package

December 9, 2014
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Predictive modelling fun with the caret package

I’m back!  6 months after my second child was born, I’ve finally made it back to my blog with something fun to write about.  I recently read through the excellent Machine Learning with R ebook and was impressed by the caret … Continue reading →

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Bootstrap and cross-validation for evaluating modelling strategies

Bootstrap and cross-validation for evaluating modelling strategies

Modelling strategies I’ve been re-reading Frank Harrell’s Regression Modelling Strategies, a must read for anyone who ever fits a regression model, although be prepared - depending on your background, you might get 30 pages in and suddenly become convinced you’ve been doing nearly everything wrong before, which can be disturbing. I wanted to evaluate three simple modelling strategies in dealing...

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user2013: The caret tutorial

July 9, 2013
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user2013: The caret tutorial

This afternoon I went to Max Kuhn’s tutorial on his caret package. caret stands for classification and regression (something beginning with e) trees. It provides a consistent interface to nearly 150 different models in R, in much the same way as the plyr package provides a consistent interface to the apply functions. The basic usage

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Books I like

January 13, 2017
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Books I like

If you’re serious about learning, you probably need to read a book at some point. These days if you want to learn applied statistics and data science tools, you have amazing options in the form of blogs, Q&A sites, and massive open online course...

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Elastic net regularization of a model of burned calories

August 12, 2016
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Elastic net regularization of a model of burned calories

Deal with feature selection and collinearity Recently I’ve been making more use of elastic net regularization as a way of fitting linear models to data when I have more candidate explanatory variables than I know what to do with and some of them are...

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Filling in the gaps – highly granular estimates of income and population for New Zealand from survey data

January 22, 2016
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Filling in the gaps – highly granular estimates of income and population for New Zealand from survey data

Individual-level estimates from survey data I was motivated by web apps like the British Office of National Statistics’ How well do you know your area? and How well does your job pay? to see if I could turn the New Zealand Income Survey into an individual-oriented estimate of income given age group, qualification, occupation, ethnicity, region and hours...

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Adopting R for experienced developers

March 14, 2015
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Adopting R for experienced developers

More and more frequently I come across people who express an interest in R, and I thought I would share some advice to help people decide if R is something they should use, as well as some high level advice on getting started. Most of these people are developers with at least few years experience writing code...

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useR! 2011 roundup

August 19, 2011
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useR! 2011 roundup

As I stand here at Heathrow waiting for my flight back to the States, I thought I'd dash off a few quick reflections of the userR! 2011 conference at University Warwick. It was an outstanding event. There's something about a conference of just a few hundred attendees (there were about 450) that creates a sense of camaraderie and common...

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