If the top-level S expression is not an assignment,
it is automatically assigned by the default program
in the working database with the name
".Last.value"
.
This works even if the printing of the expression is interrupted.
However, the next expression may overwrite
.Last.value
, so
if you want it, copy it at once.
hclust(dist(iris[,,1])) # OOPS, I meant to save it myclust <- .Last.value