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

Join 26 other subscribers

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
Category Archives: rstats
Getting started – referring to dataframe elements by place, name or condition – selecting elements to subset data
In the previous post, we revised how to read in dataframes (see also how to read in .csv files as dataframes), using the item norms database as an example (see also here), and we also revised how to get summary … Continue reading
Posted in 9. Getting started  subset, getting started, rstats, subset
Tagged logical operators, select, subset
Leave a comment
Getting started – basics: vectors and matrices; creating them; manipulating them; referring to specific elements in them
We looked previously at data structures like vectors, and data types or modes, as in numeric, character string or logical. I’ll recap some of the previous post on vectors and then move on to talking about data structures like matrices … Continue reading
Posted in 8. Getting started  data, getting started, rstats
Tagged cbind(), dataframe, matrix, rbind(), vector
Leave a comment
Getting started – recapping basics, adding foundational knowledge
This post assumes that you have installed R and Rstudio, see here and here if not. Getting started with data analysis can require a shift in mindset. Home base for most people is a spreadsheet Most people find it difficult to … Continue reading
Posted in 8. Getting started  data, getting started, rstats
Tagged arrays, dataframes, matrices, modes, objects, vectors
Leave a comment
Getting started – selecting data, wrangling data – early (basic) moves
This post and the few following will switch focus from the ML subject scores database to a database built out of normative data about word attributes, which actually comes in a number of different parts (downloadable at the links). Remember that … Continue reading
Posted in .Interim directions, getting started, rstats
Tagged csv, dataframe, normative
Leave a comment
Getting started – statistical concepts – correlations
As we advance through the capabilities of R, we will increasingly take on the development of understanding of key statistical concepts. I have uploaded some undergraduatelevel slides on correlations here: https://speakerdeck.com/robayedavies/rclasscorrelations — check them out or, better, read a chapter … Continue reading
Introduction to DMDX, R and reproducible research in psycholinguistics – some proselytizing
Here are some slides: https://speakerdeck.com/robayedavies/rdmdxandreproduciblescience – setting out a case for using DMDX with R to do reproducible science.
Getting started – positioning and getting multiple plots on one page, output as a pdf
This post assumes you know how to set a working directory, load a data file, and run a ggplot() function call to create a histogram using geom_histogram, as discussed here. What are going to do in this post is expand … Continue reading
Posted in 6. Getting started  grid plots, plotting data, rstats
Tagged distribution, facet, ggplot2, grid, histogram, label, lattice, pdf, title
1 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
Getting started – getting helped
As we get started, we will need help, let’s work on how and where to find that help, and also how to act on it. We will need help Most modern software applications strive to ensure we get what we … Continue reading
Getting started – drawing a scatterplot, with a linear regression smoother, edited title, label and theme, for report
This post assumes that you have installed and are able to load the ggplot2 package, that you have been able to download the ML subject scores database and can read it in to have it available as a dataframe in … Continue reading →