Browse by category
Tags
 2012
 anova()
 arrays
 bluff
 california
 cbind()
 collinearity
 correlation
 correlations
 csv
 dataframe
 dataframes
 distribution
 DMDX
 evernote
 Exploratory data analysis
 facet
 Flickr
 getting started
 ggplot
 ggplot2
 graph
 Graphics
 grid
 GUI
 help
 histogram
 ifelse
 july
 label
 lattice
 learnR
 learn R
 library
 LME
 lmer()
 matrices
 matrix
 merge
 mixed effects
 modes
 multicollinearity
 normative
 objects
 ols()
 package
 plot
 plyr
 productivity
 programming
 RStudio
 rbind()
 regression
 rename
 rstats
 santacruz
 scatterplot
 Scatter plot
 smoother
 social
 statistical concepts
 subset
 summary
 ttest
 title
 utah
 variable
 vector
 vectors
 visualization
 why R?
 workflow
 working directory
 workspace

Recent Posts
 Getting started — loading data, writing and saving scripts January 16, 2014
 Getting started – getting helped January 16, 2014
 Getting started — Installation of RStudio and some packages + using ggplot() to make a simple plot January 16, 2014
 Postgraduate data analysis and interpretation January 16, 2014
 Mixedeffects modeling — four hour workshop — part IV: LMEs November 5, 2013
Tag Archives: summary
Modelling – look ahead to mixedeffects modelling
So far, we have been looking at the participant attributes or the item attributes for our lexical decision study. It is time to move on to consider a mixedeffects analysis examining whether or how lexical decision responses were influenced by: … Continue reading
Posted in 16. Modelling  mixedeffects
Tagged ddply(), length(), levels(), merge, summary
Leave a comment
Modelling – examining correlations: first, look at predictor distributions
This post follows on from the previous post, concerning the examination of variable distributions. It is always useful to plot the distribution of variables like item attributes e.g. item length in letters. One important benefit of doing so is identifying … Continue reading
Posted in 11. Modelling  distributions, modelling, rstats
Tagged describeBy, statistics, summary, ttest
Leave a comment
Getting started – working directories, loading data, and a bit more plotting
For this post, I am going to assume that you know about files, folders and directories on your computer. In Windows (e.g. in XP and 7), you should be familiar with Windows Explorer. If you are not, this series of … Continue reading
Posted in 5. Getting started  load data, getting started, rstats, workflow
Tagged csv, dataframe, describe, geom, ggplot2, histogram, plot, read.csv, setwd, str, summary, working directory, workspace
3 Comments