Logical Operators

Intermediate R

Filip Schouwenaars

DataCamp Instructor

Logical Operators

  • AND operator &
  • OR operator |
  • NOT operator !
Intermediate R

AND operator "&"

TRUE & TRUE

TRUE

FALSE & TRUE

FALSE

TRUE & FALSE

FALSE

FALSE & FALSE

FALSE
Intermediate R

AND operator "&"

x <- 12
x > 5 & x < 15

TRUE

x <- 17
x > 5 & x < 15

FALSE
Intermediate R

OR operator "|"

TRUE | TRUE

TRUE

TRUE | FALSE

TRUE

FALSE | TRUE

TRUE

FALSE | FALSE

FALSE
Intermediate R

OR operator "|"

y <- 4
y < 5 | y > 15

TRUE

y <- 14
y < 5 | y > 15

FALSE
Intermediate R

NOT operator "!"

!TRUE

FALSE

!FALSE

TRUE

!(x < 5)

x >= 5
Intermediate R

NOT operator "!"

is.numeric(5)

TRUE

!is.numeric(5)

FALSE

is.numeric("hello")

FALSE

!is.numeric("hello")

TRUE
Intermediate R

Logical Operators & Vectors

c(TRUE, TRUE, FALSE) & c(TRUE, FALSE, FALSE)

TRUE FALSE FALSE

c(TRUE, TRUE, FALSE) | c(TRUE, FALSE, FALSE)

TRUE  TRUE FALSE

!c(TRUE, TRUE, FALSE)

FALSE FALSE  TRUE
Intermediate R

"&" vs "&&", "|" vs "||"

c(TRUE, TRUE, FALSE) & c(TRUE, FALSE, FALSE)

TRUE FALSE FALSE

c(TRUE, TRUE, FALSE) && c(TRUE, FALSE, FALSE)

TRUE
Intermediate R

"&" vs "&&", "|" vs "||"

c(TRUE, TRUE, FALSE) | c(TRUE, FALSE, FALSE)

TRUE  TRUE FALSE

c(TRUE, TRUE, FALSE) || c(TRUE, FALSE, FALSE)

TRUE
Intermediate R

Let's practice!

Intermediate R

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