[Rd] no $method from as.hclust (PR#538)

[Friedrich Leisch]

>>>>> On Thu, 11 May 2000 00:00:23 +0200 (MET DST),
>>>>> denis  (d) wrote:

d> as.hclust returns objects with only 6 of the standard 7 
d> components of class hclust, leaving out "method", therefore
d> being incompatible with applications looking for all
d> 7 components.

Fixed in the development version. But I had to set the method to NA as
I see no way of extracting it from twins objects (as created by the
cluster package) short of parsing the call stored there ... but that
is too unreliable IMO as it interdepends with the default arguments
used etc.

.f
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