all() any() {base}

all() and any() are functions which given a set of logical vectors returns TRUE or FALSE:

all() are all the values true?

any() is at least one value true?

all(..., na.rm = FALSE)

any(..., na.rm = FALSE)

Parameters:

- x: logical vector

- na.rm: If TRUE NA values are removed before the result is computed

x <- sort(round(rnorm(12), 1))
x

##  [1] -1.0 -0.9 -0.9 -0.5 -0.4 -0.3  0.1  0.4  0.7  1.1  1.1  1.6

all(x < 0)

## [1] FALSE

any(x < 0)

## [1] TRUE

range(iris$Sepal.Length)

## [1] 4.3 7.9

boxplot(iris$Sepal.Length, col = 'gold')

all(iris$Sepal.Length > 5)

## [1] FALSE

any(iris$Sepal.Length > 5)

## [1] TRUE

all(iris$Sepal.Length > 4)

## [1] TRUE

any(iris$Sepal.Length > 8)

## [1] FALSE

na.rm parameter:

The airquality dataset contains NA values:

summary(airquality$Ozone)

##    Min. 1st Qu.  Median    Mean 3rd Qu.    Max.    NA's 
##    1.00   18.00   31.50   42.13   63.25  168.00      37

range(airquality$Ozone, na.rm = TRUE)

## [1]   1 168

boxplot(airquality$Ozone, col ='pink')

all(airquality$Ozone > 0) 

## [1] NA

any(airquality$Ozone > 0)

## [1] TRUE

all(airquality$Ozone > 0 , na.rm = TRUE)

## [1] TRUE

any(airquality$Ozone > 0)

## [1] TRUE

any(airquality$Ozone < 0, na.rm = TRUE)

## [1] FALSE