R for Everyone: Advanced Analytics and Graphics

General Index

A

Addition

matrices, 68

order of operation, 36

vectors, 44–45

Aggregation

in data.table package, 135–138

groups, 120–123

AICC, 320

Akaike Information Criterion (AIC), 255–257, 259–260

@aliases tag, 382

all.obs option, 196

Ampersands (&) in compound tests, 111

Analysis of variance (ANOVA)

alternative to, 214–216

cross-validation, 259–260

model comparisons, 254

overview, 207–210

And operator in compound tests, 111–112

Andersen-Gill analysis, 244–245

Angle brackets (<>)

packages, 375

regular expressions, 169

ANOVA. See Analysis of variance (ANOVA)

Ansari-Bradley test, 204

Appearance options, 21–22

Appending elements to lists, 68

apt-get mechanism, 2

Arguments

C++ code, 385

CSV files, 74

functions, 49, 100–102

ifelse, 110

package documentation, ...