nlayers {via} | R Documentation |
Number of elements or layers in a 'VirtualArray
'-derived class object
Description
Function to return the length of the array in which elements are organized.
Usage
nlayers(x)
## S4 method for signature 'list'
nlayers(x)
## S4 method for signature 'SpatRaster'
nlayers(x)
## S4 method for signature 'VirtualArray'
length(x)
## S4 method for signature 'XArray'
nlayers(x)
## S4 method for signature 'RasterArray'
nlayers(x)
Arguments
x |
a |
Details
The length()
function returns the number elements that should be present based on the array structure itself, and not the total number of values stored in the object. As the object can contain missing values, the number of actual layers can be queried with nlayers
.
Value
A numeric
value.
Examples
ex <- rastex()
# omit third element
ex[3] <- NA
# number of elements in the RasterArray
length(ex)
# remaining number values in the stack
length(ex@stack)
# the number of remaining layers in the RasterArray
nlayers(ex)
[Package via version 0.2.0 Index]