R Instructor

September 23, 2020

Bug fixes Speed improvements Server fixes Additional content

June 20, 2020

- Brand new design - Added Search feature - Additional content - Improved RStudio web server - Bug fixes

August 18, 2017

Rewritten core code. Content additions, improvements and bug fixes.

February 20, 2014

Rebuilt for iOS7 Additions to base plots section: 1. Add a grid 2. Add and modify arrows - change arrow head shape - change arrow head length - change arrow color - change arrow line width - change arrow line type - change arrow head angle 3. New qplot section (requires ggplot2): How to make qplots: - Boxplot - Histogram - Density histogram - Frequency polygon - Line chart - Path plot - Scatter plot - Conditional smoother 4. Modifications to above qplot section: - add color, either specific colour or according to a third variable - add title or change title font size - add facets - adjust line widths and point sizes — there will be a lot more material on ggplot2 coming in the next update —

August 14, 2013

- Bug Fixes and code tweaks - Classification and Regression Tree video

July 5, 2013

Bug fixes & visual improvements New Content is listed below. Data summarization: - Transpose function - Reshape function, wide to long datasets - Reshape function, long to wide datasets Statistical tests: - Discriminant function analysis - Redundancy analysis Plotting Section: - Box plot, line style alterations - Box plot, line width alterations - Box plot, plot labels - Box plot, axis labels - Box plot, horizontal and vertical orientations - Box plot, estimate significance of the median - Box plot, whisker length - Box plot, box width (proportional to sample size and relatively to other box plots) - Box plot, remove outliers - Box plot, outlier style - Box plot, outlier size - Box plot, add a box plot to another plot - Box plot, fill color of a box plot's outline - Box plot, fill color of a box plot - Bar plot, beside vs stacked - Bar plot, add bar shading - Bar plot, change the shading angle - Bar plot, set bar width - Bar plot, set bar spacing - Bar plot, add group names - Bar plot, add labels or titles - Bar plot, add a legend - Bar plot, outline color of a bar plot - Bar plot, fill color of a bar plot - Histogram, add shading - Histogram, add bar labels (counts of observations) - Histogram, specify break points - Histogram, specify end points (left or right) - Histogram, add axis and plot titles - Histogram, outline color of a histogram - Histogram, fill color of a histogram - Line Chart, line width - Line Chart, line style - Line Chart, line color - Scatter plot, point outline width (re-done) - Scatter plot, change point shape (re-done) - Scatter plot, alter point size (re-done) - Add or alter text, alignment - Add or alter text, change color - Add or alter text, font - Add or alter text, size - Add or alter text, rotation - Add or alter text, style Consolidated content and improved: - "Add, alter lines or points" - "Add Color to..."

May 22, 2013

- Search algorithm improvements - Visual improvements, especially for the iPad - Optimizations and bug fixes - Check out the new forum ** Significant content expansion coming in the next update **

December 20, 2012

- R can now be run from your iPhone and iPad (internet connection required) - iOS6 and iPhone 5 compatibility - Bug fixes - Cosmetic improvements - Reduced application size - Modest content expansion

September 2, 2012

***** NOTE ***** You must download this update to ensure all features of R Instructor (including some of the old content) continues to function. ***** iOS updates: General code optimizations and bug fixes. Disabled mute button, the volume controls regulate audio volume. The following videos can now be viewed without an internet connection 1. How to make a histogram 2. Introduction to plotting 3. Linear Correlation 4. Linear Regression 5. One-way ANOVA 6. One-sample T-test 7. Two-sample T-test 8. Paired T-test 9. MANOVA 10. ANCOVA Content expansion - More information and videos on indexing - ANCOVA video and written instructions - An entirely new section on legends - How to exclude redundant data between datasets - More and upgraded visual examples - The apply() function - How to calculate lagged-differences: diff() function - How to convert data structures (matrix to list, list to data frame... etc) - A video on importing data (.csv and .txt files) - Comparison of the test statistics used in MANOVA. - How to use and select colours (Plotting -> Add Colour to… -> Selecting colours) - Three new quick reference guides: 1. Point style guide (all the point styles controlled by pch) 2. Line style guide (all the lines styles controlled by lty) 3. Colour() selector table Please keep the suggestions coming, I'm always happy to incorporate new content into this application… and don't forget to rate this application 5-stars! Rinstructor@gmail.com Enjoy, Shidan

June 22, 2012

- Removed ads - Modest content expansion (streaming video & text) - bug fixes Contact: Rinstructor@gmail.com www.Rinstructor.com