There is a general rule that scalar operations (that is functions
that work element-by-element and return a scalar result) preserve
attributes including names, dims and dimnames.
Similarly, there is a general rule about binary operations and attributes.
These things should definitely be in the
Hi, people.
I was a bit intrigued by the message quoted below. Indeed, if pt() is
given a matrix, it returns a matrix. Should this feature be documented?
?pt speaks about a vector of quantiles, and says nothing about the
type of what it returns.
The same might presumably apply to other
I think what is happening is that it is preserving attributes of the input.
e.g.
x - 1:3
attr(x, A) - 23
pt(x, 3)
[1] 0.8044989 0.9303370 0.9711656
attr(,A)
[1] 23
Note that attribute A was preserved. Since matrices are just
vectors with a dim attribute that would imply the result. I agree
