Section 24 Review

• RStudio environment:

  • Console, Source,
  • File, setwd(), getwd()
  • Environment, History, Plots,
  • Packages, Help

• R Class, R Objects

• Types of R Class

  • Integer, Double, Logical, Character

• Vector

• Vector operations

• Testing: is.*

• Coercion: as.*

• Implicit, Explicit, Non-sensical coercion

• Missing values

• Operation with missing values

• R Functions

• R Help

• Read, Write, Save R objects

• Factor: Categorical & Ordinal

• Factor Operations

• Matrix

• Dataframe

• List

• Table

• Read, Write, Save data

• R housekeeping

• Operation on vector, matrix, data.frame

• Subsetting/Indexing on vector, matrix, data.frame, list