Re: [R] R 2.3.1 on Mac OSX: apply a function to 'dist()' ?

From: Hans-Joerg Bibiko <bibiko_at_eva.mpg.de>
Date: Thu 06 Jul 2006 - 01:37:15 EST

Dear Sarah,

many thanks for the hint.

Unfortunately my distance metric is more complex. For me it is not only important to know whether there is a change between rows but also to know where (which column) the change occurs and furthermore to know if there is a change in e.g. column 5 to look at column 144 etc. in order to be able to calculate a kind of weighted distance matrix.
I doubt that it would be possible to decompose my metric into some of the common manipulations(?)

Albeit I had a look at the package ecodist (many thanks for that, now I can solve an other problem ;) ). Based on this mechanism of decomposing I will adopt this idea to prepare some subfunctions written in C which could be combined to solve a specific problem. Doing so other users can modify these a bit easier (I hope).

But nevertheless I still have a speed problem!

Best regards,

Hans



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