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Apply a callback to an array: Difference between revisions
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→{{header|R}}: Further examples
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=={{header|R}}==
Many functions can take advantage of implicit vectorisation, e.g.
<lang R>cube <- function(x) x*x*x▼
<lang R>
elements <- c(1, 2, 3, 4)▼
cubes <- cube(elements)
</lang>
Explicit looping over array elements is also possible.
<lang R>
cubes <- numeric(5)
for(i in seq_along(cubes))
{
cubes[i] <- cube(elements[i])
}
</lang>
Loop syntax can often simplified using the [http://stat.ethz.ch/R-manual/R-patched/library/base/html/apply.html *array] family of functions.
<lang R>
elements2 <- list(1,2,3,4,5)
cubes <- sapply(elements2, cube)
</lang>
In each case above, the value of 'cubes' is
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=={{header|Raven}}==
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