Numbers - R (Numbers)

Question 1

42) There are three number types in R:

Answer 1

NT (Numeric, Integer, Complex)

Question 2

43) A numeric data type is the most common type in R, and contains any number with or without a decimal.

Answer 2

NT (Numeric)

Question 3

44) Integers are numeric data without decimals.

Answer 3

NT (Integer)

Question 4

45) Integers: to create an integer variable, you must use the letter L after the integer value:

Answer 4

NT (Integer)

Question 5

46) Integer: this is used when you are certain that you will never create a variable that should contain decimals.

Answer 5

NT (Integer)

Question 6

47) A complex number is written with an “i” as the imaginary part:

Answer 6

NT (Complex)

Question 7

48) You can convert from one type to another with the following functions:
as.numeric() as.integer() as.complex()

Answer 7

as.numeric() as.integer() as.complex()