On Mar 8, 5:50 pm, Jonathan Shore jonathan.sh...@gmail.com wrote:
Now OO may be antithetical to the traditional way of using lisp, however, I
see myself needing something close to an OO-style mapping for part of what I
do. Currently my trading strategies have large and disparate state
On 8 Mar 2010, at 19:22, Jonathan Shore wrote:
For the sake of understanding, I'm not yet clear on how one
*efficiently* binds multiple pieces of state together in
clojure. How would one create a simple matrix for example where I
want to bind dimension and a float-array into a tightly
On 09.03.2010, at 14:28, Jonathan Shore wrote:
Thanks. BTW, you may want to consider targeting ejml instead of colt if you
are targeting dense matrix operations. ejml does quite a bit better
performance-wise. Colt does support more matrix types though.
Thanks for the pointer, I didn't
Thanks. BTW, you may want to consider targeting ejml instead of colt if you
are targeting dense matrix operations. ejml does quite a bit better
performance-wise. Colt does support more matrix types though.
On Mar 9, 2010, at 3:00 AM, Konrad Hinsen wrote:
On 8 Mar 2010, at 19:22,
On Mar 8, 11:50 am, Jonathan Shore jonathan.sh...@gmail.com wrote:
How would I encapsulate this into a data structure to be passed into
functions efficiently? I could use a map of symbols to various structures,
but that would be inefficient in access and memory. I could bind into a
On Mar 8, 8:22 pm, Jonathan Shore jonathan.sh...@gmail.com wrote:
It is a shame to have to dive down to Java or native (perhaps with the
exception of some of the massive numerical libraries one does not want to
rewrite). I'm hoping to use Clojure or something like clojure as a complete
Hi,
Its been 19 years since I last wrote anything serious in lisp (and
that was Scheme). In the intervening time I've mostly used OO
languages, for lack of more practical functional ones. There are now
a number of functional or hybrid functional languages available which
have become practical.
Here are a few random thoughts:
(1) You still have namespaces in Clojure, which correspond 1-1 with
Java packages.
(2) Multimethods are open, so you add to them from multiple places.
(3) Protocols (a 1.2) feature give you an approach to your strategies
that is more flexible than OO
On Mar 8, 9:29 am, Stuart Halloway stuart.hallo...@gmail.com wrote:
(1) You still have namespaces in Clojure, which correspond 1-1 with
Java packages.
More or less. The namespace foo.bar.baz is actually a Class named
baz in the package foo.bar.
-SS
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On Mar 7, 6:35 pm, jshore jonathan.sh...@gmail.com wrote:
Wondering whether anyone has done something very complex in the algo
space or comparable so can get an idea of how this sort of stuff is
structured idiomatically. I will also be concerned with performance
and memory use, as one of my
Thanks for the reply.
I could be wrong, but namespaces just provide a package / require mechanism,
such that only required functionality is in the namespace of some code.This
seems to be more of a mapping to the package / import mechanism of java or
something similar in ruby or python.
On Mar 8, 2010, at 11:51 AM, Volkan YAZICI wrote:
On Mar 7, 6:35 pm, jshore jonathan.sh...@gmail.com wrote:
Wondering whether anyone has done something very complex in the algo
space or comparable so can get an idea of how this sort of stuff is
structured idiomatically. I will also be
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