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Re: [science-iwg] Eclipse Datasets for Science 
Yeah, I'm waiting for the IP review ...

Am 10.09.2015 um 18:03 schrieb Jonah Graham:

Sorry, I think I left my question unclear at the end of the message. I
am not proposing dropping complex support.

This is what I meant:
So, once org.apache.commons.math3 is approved, is there anyone who
needs IDataset to work with org.apache.commons.math.complex.Complex as
opposed to the new class (with the same functiionality)
org.apache.commons.math.complex3.Complex?

Said in another way, do we need IDataset to support both
org.apache.commons.math.complex.Complex and
org.apache.commons.math.complex3.Complex or can we drop support for
org.apache.commons.math.complex.Complex once org.apache.commons.math3
is approved?

I am hoping that once Philip gets org.apache.commons.math3 approved,
everyone can start upgrading to the much newer package and we can drop
support for the older one altogether.

Thanks
Jonah


On 10 September 2015 at 16:54, Jay Jay Billings
<jayjaybillings@xxxxxxxxx> wrote:

Jonah,

We do. We require Complex numbers for our Reflectivity Simulator.

Jay

On Sep 10, 2015 10:50 AM, "Tracy Miranda" <tracy@xxxxxxxxxxxxxxxx> wrote:

Hi all,

I hope you have been having a good time considering Eclipse Datasets
for Science.

I pushed a new branch

(https://github.com/jonahkichwacoders/org.eclipse.dataset/tree/apache_math3)
showing the upgrade to apache commons math3 library (assuming it gets
through ip review and into Orbit sometime soon).

On reviewing the differences (manually + using PDE API analysis) it
seems the only API effect is the
org.apache.commons.math{3}.complex.Complex dependency. Obviously
ComplexFloatDataset and ComplexDoubleDataset have lots of methods that
have Complex in their signature. Additionally, Maths, Stats,
AbstractDataset and a few other places rely on which Complex.

So, once org.apache.commons.math3 is approved, is there anyone who
needs IDataset to work with org.apache.commons.math.complex.Complex?

Jonah

On 9 September 2015 at 12:15, Jay Jay Billings <jayjaybillings@xxxxxxxxx>
wrote:

Great news! Looking forward to trying it.

Jay

On Sep 8, 2015 6:28 PM, "Tracy Miranda" <tracy@xxxxxxxxxxxxxxxx> wrote:

Following on from our previous email[1] Jonah has now created a fork of
DAWNSci's datasets which is available here:
https://github.com/jonahkichwacoders/org.eclipse.dataset

Details of how you can try it out for yourself are here:
https://github.com/jonahkichwacoders/org.eclipse.dataset.examples

In particular this fork:
* Is a subset of dataset functionality
* Has a p2 site available to try out the code
* p2 site includes source bundles
* Depends only on current Orbit approved bundles
* Has no pre-compiled JARs
* Works with Eclipse 4
* Works as a standalone JAR
* Includes all relevant tests from Dawn
* Buildable with maven/tycho (e.g. run mvn verify and get an update
site)
* using Travis CI as build machine

Datasets features & functionality includes:
   * Various types: doubles, compound, complex, float, etc
   * Array creation
   * Universal functions e.g. sin, cos, exp
   * Linear algebra
   * Indexing & slicing
   * Regions of interest e.g. rectangular

This fork is intended to be a springboard for SWG members to try out
DAWN
datasets, and start to discuss how it applies to their projects. We
will
maintain it in the short term.

   When you next have an opportunity we hope all interested parties
could
   1.Try it out
     - can you run the example?
     - can you integrate it with your codebase?

   2. Get Involved in architecture discussions:
     - how does it fit within your framework?
     - what works well?
     - what's missing?
     - suggestions for improvements.

Ultimately the goal is to have a standardised dataset API &
implementation
shared by all.

Regards,
Tracy

[1] http://dev.eclipse.org/mhonarc/lists//science-iwg/msg01074.html

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~~~~~~~~~~~~~~~~~~~~~~~~
OpenChrom - the open source alternative for chromatography / mass spectrometry
Dr. Philip Wenig » Founder » philip.wenig@xxxxxxxxxxxxx » http://www.openchrom.net
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