Have you looked into Incanter project? I just found out about it recently. "Incanter is a Clojure-based, R-like platform for statistical computing and graphics." http://incanter.org/
In particular, maybe this is useful: http://liebke.github.com/incanter/core-api.html#incanter.core/sel Carson On Jan 10, 11:23 am, Konrad Hinsen <konrad.hin...@fastmail.net> wrote: > On 10.01.2010, at 13:55, Rock wrote: > > > As for the Java libraries, have you had a look at JScience? From what > > I've seen, it's not at all bad. > > It's an interesting library, but it lives clearly in the Java universe > of strict typing. Moreover, it doesn't really have arrays, just > vectors and matrices. Those are very well thought out and implemented, > but it's still a more limited approach than providing general N- > dimensional arrays. > > A problem with all Java libraries is their orientation towards static > typing. In Clojure (like in Python), it is natural to have nested data > structures, and in particular nested vectors (in Python nested lists) > as a conceptual representation of multidimensional arrays. This > implies that array indexing operations can return either another array > or an element, meaning that the return type must be Object. This can > be done in Java but it is not a natural approach. Therefore the Java > libraries typically have separate operations for accessing elements > and for extracting subarrays, which makes many algorithms > unnecessarily cumbersome. > > Konrad.
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