n_elements
Get the number of elements
Gets the number of elements in an object.
Usage
n_elements(x)
Arguments
 x
 Any object.
Value

A nonnegative integer of the number of elements.
Note
For atomic objects, the number of elements is the product of the
dimensions, as calculated by DIM
. For recursive objects,
the number of elements is the sum of the number of elements of each of
their atomic components.
See Also
Examples
library(assertive.properties)
n_elements(1:10)
n_elements(NULL)
n_elements(data.frame(x = 1:5, y = rnorm(5)))
n_elements(list(1:5, list(1:3, list(1:7))))
n_elements(var) # depends upon the length of the body
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