Operatori logici

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Filip Schouwenaars

DataCamp Instructor

Operatori logici

  • Operatorul AND &
  • Operatorul OR |
  • Operatorul NOT !
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Operatorul AND "&"

TRUE & TRUE
TRUE
FALSE & TRUE
FALSE
TRUE & FALSE
FALSE
FALSE & FALSE
FALSE
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Operatorul AND "&"

x <- 12
x > 5 & x < 15
TRUE
x <- 17
x > 5 & x < 15
FALSE
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Operatorul OR "|"

TRUE | TRUE
TRUE
TRUE | FALSE
TRUE
FALSE | TRUE
TRUE
FALSE | FALSE
FALSE
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Operatorul OR "|"

y <- 4
y < 5 | y > 15
TRUE
y <- 14
y < 5 | y > 15
FALSE
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Operatorul NOT "!"

!TRUE
FALSE
!FALSE
TRUE
!(x < 5)
x >= 5
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Operatorul NOT "!"

is.numeric(5)
TRUE
!is.numeric(5)
FALSE
is.numeric("hello")
FALSE
!is.numeric("hello")
TRUE
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Operatori logici și vectori

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

c(TRUE, TRUE, FALSE) & c(TRUE, FALSE, FALSE)
TRUE FALSE FALSE
c(TRUE, TRUE, FALSE) && c(TRUE, FALSE, FALSE)
TRUE
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"&" vs "&&", "|" vs "||"

c(TRUE, TRUE, FALSE) | c(TRUE, FALSE, FALSE)
TRUE  TRUE FALSE
c(TRUE, TRUE, FALSE) || c(TRUE, FALSE, FALSE)
TRUE
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Să exersăm!

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