Home-> R Code

 

 

chapter
Title
R code
   
1
How this book works
 
2
Statistics and R - Setting the scene
 
3
R - What is it?  Two ways to use it
 
4
Downloading and installing the R software - free!
 
5 Starting R              
6
R Commander the graphical front end to R
✔
7 Packages: the apps         ✔
8 A quick tutorial: Analysing data shipped with R   ✔
9
A quick  introduction to the R language
✔
Basic Statistical techniques  
11 Summary statistics          ✔
12 Graphing Distributions of single variables: histograms and density plots ✔
13 Densityplots for subgroups defined by factor levels ✔
14 Boxplots              ✔
15
Percentages for each category/factor level
✔
Samples and Populations  
17 Comparing a sample mean to a population mean - Single sample t test  ✔
18 Comparing pre-post test means - Paired samples t test ✔
19 Comparing 2 sample means - independent samples t test            ✔
20 Comparing pre-post test median difference - Wilcoxon Matched Pairs Statistic   ✔
21 Comparing 2 distributions - Mann Whitney U      ✔
22 Comparing an observed proportion to a population value - The Binomial test      ✔
23 Several independent proportions compared with the average: two way tables  ✔
24 Comparing several independent categories: Contingency tables                ✔
25
Measuring the degree to which two variables co-vary: Correlation
✔
26 Measuring the influence of one variable on another: Regression               ✔

Health Statistics               

 
28
Risk and Odds ratios
✔
29 Number needed to treat/harm ✔
30
Sensitivity, Specificity and predictive values
✔
31 Levels of agreement - Kappa, Krippendorff and the ICC ✔
32
Bland - Altman plots
✔
33
Meta-analysis: the basics
✔
34 Plotting survival over time: KM (Kaplan-Meier) plots       ✔
35 Investigating effects upon survival over time: Cox PH regression               ✔
36 Graphical summaries of data      ✔
37 Paired nominal data: comparing proportions using McNemar's test          ✔

Managing your data and R          

 
39
Creating datasets and distributions in R Commander and R
✔
40
Importing your data into R
✔
41
Cutting and Pasting from Excel/Word to the R Data editor  
✔
42 Saving and exporting your work and data ✔
43 R Script files (.r) ✔
44 Manipulating variables (columns) in R Commander and R              ✔
45 Manipulating cases (rows) in R Commander and R       ✔
46 Expanding tables of counts into flat files                ✔
47 Installing non-CRANS packages  ✔
48 Workspaces, objects and history files   ✔
49 Developing R Code – Rstudio and NppToR            ✔

More ways of analysing your data

 
51
Mosaic and extended association plots
✔
52 Multiway tables and Crosstabs  ✔
53 Re-sampling – Permutations, Jackknifes and Bootstrap’s               ✔
54 (part 1) Repeated measures: Mixed models and Gee     ✔
54 (part 2) Repeated measures: Mixed models and Gee     ✔
55
Sample size requirements      
 
56 Confidence intervals for effect sizes - Noncentral distributions ✔
57 Publication quality graphics         ✔

More Regression Techniques

 
59
Multiple Linear Regression: Measuring the influence of several variables on one continuous variable
✔
60 Logistic regression: a binary outcome   ✔
61 Poisson (Log linear) Regression ✔
62 Conditional Logistic Regression  ✔
63
Factorial ANOVA
✔
64 Factor Analysis  ✔
65 Structural Equation Modelling (SEM)       ✔
66 Summary