2228 search results for "Regression"

Accurate imputation and valid statistical inference with ensemble

January 25, 2014
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Accurate imputation and valid statistical inference with ensemble

Imputation is predictive inference and not causal inference! I have met many people, who consider the two are equivalent. Their reasoning is based on the belief that if you can produce a model which replicate the data generating...

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Online class on Statistical Learning

January 24, 2014
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Online class on Statistical Learning

Trevor Hastie and Robert Tibshirani are teaching an online class on Statistical Learning starting this week. The first week is introduction and overview, so it's not too late to join up. They've also published a new book, An Introduction to Statistical Learning, as a more accessible companion to their widely revered The Elements of Statistical...

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Rob Hyndman on Forecasting

January 24, 2014
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Rob Hyndman on Forecasting

If you have an interest in forecasting, especially economic forecasting, the Rob Hyndman's name will be familiar to you. Hailing from my old stamping ground - Monash University - Rob is one of the world's top forecasting experts.  Without going into all of the details, Rob is very widely published, and also...

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Coursera Specializations: Data Science, Systems Biology, Python Programming

January 22, 2014
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I first mentioned Coursera about a year ago, when I hired a new analyst in my core. This new hire came in as a very competent Python programmer with a molecular biology and microbial ecology background, but with very little experience in statistics. I got him to take Roger Peng's Computing for Data Analysis course...

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Statistical modeling and computation [book review]

January 21, 2014
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Statistical modeling and computation [book review]

Dirk Kroese (from UQ, Brisbane) and Joshua Chen (from ANU, Canberra) just published a book entitled Statistical Modeling and Computation, distributed by Springer-Verlag (I cannot tell which series it is part of from the cover or frontpages…) The book is intended mostly for an undergrad audience (or for graduate students with no probability or statistics

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Estimating a nonlinear time series model in R

January 20, 2014
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Estimating a nonlinear time series model in R

There are quite a few R packages available for nonlinear time series analysis, but sometimes you need to code your own models. Here is a simple example to show how it can be done. The model is a first order threshold autoregression:     where is a Gaussian white noise series with variance . The following function will generate...

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Fast-track publishing using knitr: stitching it together (part V)

January 20, 2014
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Fast-track publishing using knitr: stitching it together (part V)

Fast-track publishing using knitr is a short series on how I use knitr to speedup publishing in my research. There has been plenty of feedback and interest for the series, and in this post I would like to provide (1) a brief summary and (2) an example showing how to put all the pieces together. [caption id="attachment_1094"...

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ggplot2 in Python: A major barrier broken

January 20, 2014
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ggplot2 in Python: A major barrier broken

I have been working with Python recently and I have to say, I love it. There’s a learning curve, of course, which has been frustrating. However, once I got comfortable with it (and continue to do so), I found that … Continue reading →

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Statistics meets rhetoric: A text analysis of "I Have a Dream" in R

January 20, 2014
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Statistics meets rhetoric: A text analysis of "I Have a Dream" in R

This article was first published on analyze stuff. It has been contributed to Anything but R-bitrary as the second article in its introductory series.By Max Ghenis Today, we celebrate the would-be 85th birthday of Martin Luther King, Jr., a man remembered for pioneering the civil rights movement through his courage, moral leadership, and oratory prowess. This post...

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Statistics meets rhetoric: A text analysis of “I Have a Dream” in R

January 20, 2014
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Statistics meets rhetoric: A text analysis of “I Have a Dream” in R

Today, we celebrate the would-be 85th birthday of Martin Luther King, Jr., a man remembered for pioneering the civil rights movement through his courage, moral leadership, and oratory prowess. This post focuses on his most famous speech, I Have a Dream given on the steps of the Lincoln Memorial to over...

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