T1: Getting startet

Question 1

THE POWER OF R IN DATA
ANALYSIS

Answer 1

• Comprehensive statistical analysis capabilities
• Rich ecosystem with numerous libraries
• Popularity in the data science community

Python is the same, but it is more popular in the industry. That + comes with it
being less reliable -

Question 2

INTEGRATED DEVELOPMENT
ENVIRONMENTS (IDES)

Answer 2

What is an IDE?
* Streamline, manage, and execute coding
* Debugging
* Testing
* Enhance productivity
* Collaboration

Question 3

EXPLORING R STUDIO

Answer 3

Comprehensive IDE tailored for R
* Features: Script editor, console, plots, and more
* Integrated tools for reproducible research

Question 4

NAVIGATING THE R STUDIO
INTERFACE

Answer 4

• Script/source Panel:
  Write and execute R
  scripts
• Console: Direct R
  commands and view
  outputs
• Environment: Monitor
  variables, data frames,
  and more
• Output: Plots, Packages,
  and Help: Visualization
  and extensions

Question 5

IN-BUILT HELP

Answer 5

> [function name] ## Executes the function
?[function name] ## gets you help
information

Question 6

DEBUGGING

Answer 6

How to ask for help:
I was attempting to [desired behavior]
This is my code [code]
This is what happens [error or output]

E.g.
I was trying to [merge two columns, so as to get a matrix]
rbind(c1, c2)
I get a long column instead.

Question 7

BASIC DATA TYPES

Answer 7

a <- 2
x <-
c(1,2,3,4)
x*2
>x

Question 8

DATA TYPES

Answer 8

Numbers
* 1, 2, 3
* 3.14
Strings/characters
* “Hello world”
Booleans
* TRUE / FALSE (T /
F)

Question 9

BASIC OPERATORS

Answer 9

For numerical values (x
and y)

Arithmetic operators:
x+y
x-y
x*y
x/y
x^y
x%%y

For boolean values (x
and y)

Logical operators
! x
x & y
x | y

Question 10

BASIC FUNCTIONS

Answer 10

Create/load data:
* c()
* matrix()
* data.frame()
* read.table()
* read.csv()

Descriptives:
* mean()
* min()
* max()
* sum()

Data operations:
* subset()

Question 11

BASIC FUNCTIONS

Answer 11

x <- c(1,2,3,4,5,-3,0,2)
sum(x)
max(x)
min(x)
subset(dataframe, logic
expression) hist()

Question 12

CONTROL STRUCTURES

Answer 12

if(TRUE) {
print(“Yes it
is.”)
}
for(i in
1:10)
{ print(i)
}

Question 13

IMPORTANT DAYA TYPES

Answer 13

• Vector
• Data
  frame
  Others:
  Matrix,
  List