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Color Palettes in RGB Space
(This article was first published on Trestle Technology, LLC » R, and kindly contributed to R-bloggers) .knitr { background-color: #f7f7f7; border:solid 1px #B0B0B0; } .error { font-weight: bold;...
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Experimental Design: Problem Set
(This article was first published on ALSTAT R Blog, and kindly contributed to R-bloggers) QUESTIONSThe tensile strength of Portland cement is being studied. Four different mixing techniques can be...
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The stimuli-as-a-fixed-effect fallacy
(This article was first published on Psychological Statistics, and kindly contributed to R-bloggers) Neuroskeptic has just blogged on a new paper by Judd, Westfall and Kenny on Treating stimuli as a...
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Confidence intervals with tiers: functions for between-subjects (independent...
(This article was first published on Serious Stats » R code, and kindly contributed to R-bloggers) In a previous post I showed how to plot difference-adjusted CIs for between-subjects (independent...
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Split-plot 1: How does a linear mixed model look like?
(This article was first published on Quantum Forest » rblogs, and kindly contributed to R-bloggers) I like statistics and I struggle with statistics. Often times I get frustrated when I don’t...
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Example 9.36: Levene’s test for equal variances
(This article was first published on SAS and R, and kindly contributed to R-bloggers) The assumption of equal variances among the groups in analysis of variance is an expression of the assumption of...
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Adventures at My First JSM (Joint Statistical Meetings) #JSM2012
(This article was first published on Byte Mining » R, and kindly contributed to R-bloggers) During the past few decades that I have been in graduate school (no, not literally) I have boycotted JSM on...
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The Relative Importance of Predictors – Let the Games Begin!
(This article was first published on Engaging Market Research, and kindly contributed to R-bloggers) What's the one thing we need to do?Marketing researchers are asked this question frequently...
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INLA: Bayes goes to Norway
(This article was first published on Quantum Forest » rblogs, and kindly contributed to R-bloggers) INLA is not the Norwegian answer to ABBA; that would probably be a-ha. INLA is the answer to ‘Why do...
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Item Response Theory: Developing Your Intuition
(This article was first published on Engaging Market Research, and kindly contributed to R-bloggers) Suppose that you accepted my argument from the last two posts on halo effects and bifactor models....
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Football model
(This article was first published on Wiekvoet, and kindly contributed to R-bloggers) After reading Dutch football data (Eeredivisie 2011-2012) and making a predictions display it is time to look at a...
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Football, an ordinal model
(This article was first published on Wiekvoet, and kindly contributed to R-bloggers) On September 19th, flo2speak remarked under a post that his/her experience is that ordinal models had better...
View ArticleR 2.15.2 scheduled for October 26
(This article was first published on Revolutions, and kindly contributed to R-bloggers) The next minor update to R — version 2.15.2 "Trick or Treat" — will be released on October 26, R-core member...
View ArticleParse pdf files with R (on a Mac)
(This article was first published on Nicebread » R, and kindly contributed to R-bloggers) Inspired by this blog post from theBioBucket, I created a script to parse all pdf files in a directory. Due to...
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Adventures at My First JSM (Joint Statistical Meetings) #JSM2012
(This article was first published on Byte Mining » R, and kindly contributed to R-bloggers) During the past few decades that I have been in graduate school (no, not literally) I have boycotted JSM on...
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Color Palettes in HCL Space
(This article was first published on Trestle Technology, LLC » R, and kindly contributed to R-bloggers) .knitr.inline { background-color: #f7f7f7; border:solid 1px #B0B0B0; } .error { font-weight:...
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Power and Sample Size Analysis: Z test
(This article was first published on Milano R net, and kindly contributed to R-bloggers) Abstract This article provide a brief background about power and sample size analysis. Then, power and sample...
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R for Ecologists: Permutation Analysis – t-tests
(This article was first published on Climate Change Ecology » R, and kindly contributed to R-bloggers) You’ve carefully designed your experiment, you’ve meticulously collected your data, and you have...
View ArticleR 2.15.2 now available
(This article was first published on Revolutions, and kindly contributed to R-bloggers) As promised, the source distribution for R 2.15.2 is now available for download from the master CRAN repository....
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Exploring GAMs with Rosemary Hartman
(This article was first published on Noam Ross - R, and kindly contributed to R-bloggers) table tbody {border-top:2px; border-bottom:2px;} table thead {border-bottom:1px;} Today at Davis R Users’...
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