1766 search results for "regression"

Plotting lm and glm models with ggplot #rstats

March 22, 2013
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Plotting lm and glm models with ggplot #rstats

Update I followed the advice from Tim’s comment and changed the scaling in the sjPlotOdds-function to logarithmic scaling. The screenshots below showing the plotted glm’s have been updated. Summary In this posting I will show how to plot results from … Weiterlesen →

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Animating neural networks from the nnet package

March 19, 2013
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Animating neural networks from the nnet package

My research has allowed me to implement techniques for visualizing multivariate models in R and I wanted to share some additional techniques I’ve developed, in addition to my previous post. For example, I think a primary obstacle towards developing a useful neural network model is an under-appreciation of the effects model parameters have on model

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Samsung Phone Data Analysis Project

March 19, 2013
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Samsung Phone Data Analysis Project

Below are my findings from the second data analysis project in Dr. Jeffery Leek’s John Hopkins Coursera class. Introduction I used the  “Human Activity Recognition Using Smartphones Dataset” (UCI, 2013) to build a model. This data  was recorded from a Samsung prototype smartphone with a built-in accelerometer. The purpose of my model was to recognize the type

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What’s New in 6.2: Open Source R 2.15.3

March 19, 2013
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by Thomas Dinsmore Last week, Revolution Analytics released the Limited Availability edition of Revolution R Enterprise Release 6.2. Interest in this new release is high, and we're very pleased with user response. Over the next several weeks, I will share more detailed information about the capabilities included in this new release. Revolution R Enterprise Release 6.2 supports open source...

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Which political science journals will have a data policy?

March 18, 2013
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Which political science journals will have a data policy?

Making available replication materials for the research you do is A Good Thing. It’s also work, and it’s quite easy to never get around to. Certainly I claim no special virtue in this department so I am always happy when there’s an institutional stick to prod my better nature in the right direction. One such institutional

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R, where should I start?

March 17, 2013
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This is a dynamic post which I will continue to update whenever I find something new. Hope you will find the following links useful.Online Courses for Learning the R languageTry R from Code Schoole-Books for Learning the R LanguageR for Beginners ...

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Extracting Information From Objects Using Names()

March 17, 2013
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Extracting Information From Objects Using Names()

One of the big differences between a language like Stata compared to R is the ability in R to handle many different types of objects at once, and combine them together or pull them apart.  I had a post about objects last year, but I thought I'd sh...

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Happy St Patrick’s Day

March 17, 2013
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Happy St Patrick’s Day

I love Saint Patrick’s Day for, at least, two reasons. The first one is that, on March 17th, you can play out loud The Pogues, the second one is that it’s the only day in the year when I really enjoy getting a Guiness in a pub. And Guiness is important in statistical science (I did mention a couple...

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New package for ensembling R models

March 13, 2013
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New package for ensembling R models

I've written a new R package called caretEnsemble for creating ensembles of caret models in R.  It currently works well for regression models, and I've written some preliminary support for binary classification models. At th...

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Distrust of R

March 12, 2013
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I guess I've been living in a bubble for a bit, but apparently there are a lot of people who still mistrust R. I got asked this week why I used R (and, specifically, the package rpart) to generate classification and regression trees instead of SAS Ente...

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