Data Science for Defense Analysis
Welcome
Preface
I Setup
1 R and RStudio
- 1.1 R
  - 1.1.1 Installation
- 1.2 RStudio
  - 1.2.1 Installation
2 Coding Basics
- 2.1 Syntax
3 Projects
- 3.1 Working Directory
- 3.2 Structure
4 Version Control
5 R Markdown
II Data Analysis I
6 Importing Data into R
- 6.1 Tabular Data
- 6.2 Additional Resources
7 Data Frames
8 Tidy Data
- 8.1 Additional Resources
9 Exporting Data from R
III Data Analysis II
10 Text
11 Dates and Times
IV Data Analysis III
12 Relational Data
- 12.1 Set Operations
- 12.2 Joins
  - 12.2.1 Mutating
  - 12.2.2 Filtering
V R as a Programming Language
13 Objects
14 Control Structures
15 Functions
16 Iteration
VI Visualization
VII Spatial Data
VIII Graphs and Networks
IX Data in the Wild
Published with bookdown

Data Science for Defense Analysis

13 Objects

13.1 `vector()`

13.1.1 `NA`

13.1.2 Indexing and Subsetting

13.2 `matrix()`

13.3 `list()`

13.3.1 `NULL`

13.4 `data.frame()`