[kepler-users] Sequence to Record

[Chris.Peters at csiro.au]

Thanks Ben - I'll give it a go.


-----Original Message-----
From: ben leinfelder [mailto:leinfelder at nceas.ucsb.edu] 
Sent: Wednesday, 9 September 2009 9:36 AM
To: Peters, Chris (ICT Centre, Hobart)
Cc: kepler-users at kepler-project.org
Subject: Re: [kepler-users] Sequence to Record

Chris -
I'd thought I made the R expression actor accept arrays of  
arrays...and I had...but for strings only. I've added support for int,  
float and double if you want to get the latest from the kepler  
development trunk and try again.
-ben

On Sep 8, 2009, at 3:29 PM, <Chris.Peters at csiro.au> <Chris.Peters at csiro.au 
 > wrote:

> Hi Ben,
>
> Thanks for the suggestion. I have looked at this actor - and you  
> need to pre-configure the input ports - which would mean that you  
> knew the number of input arrays. In my case I don't know the number  
> of input arrays - this is determined when the workflow runs.
>
> cheers
>
> -----Original Message-----
> From: ben leinfelder [mailto:leinfelder at nceas.ucsb.edu]
> Sent: Wednesday, 9 September 2009 3:21 AM
> To: Peters, Chris (ICT Centre, Hobart)
> Cc: kepler-users at kepler-project.org
> Subject: Re: [kepler-users] Sequence to Record
>
> Chris,
> Have you tried using the Record Assembler actor to make a record from
> your various arrays?
> That might be just the thing you need before hooking it up to an R
> actor.
> -ben
>
> On Sep 7, 2009, at 5:03 PM, <Chris.Peters at csiro.au> <Chris.Peters at csiro.au
>> wrote:
>
>> Hi,
>>
>> I running an SDF workflow with an ArrayToSequence actor; after
>> processing the sequence I want to re-integrate and feed into an R
>> actor.
>>
>> I'm having trouble doing this as an array of arrays is not handled
>> by the R actor. Eg {{1,2,3},{4,5,6}}.
>>
>> If I could turn the sequence into a "record" then the R actor would
>> recognise this as a dataframe - which is great for me.
>>
>> I've tried modifying the SequenceToArray actor to go to a record,
>> but this errors due to type mis-match on the ports.  Eg
>> {v1={1,2,3},v2={4,5,6} ....}
>>
>> Any suggestions on how to do this would be appreciated? (note: I'd
>> trying to avoid writing/reading to/from a file in the file-system)
>>
>> thanks
>>
>>        Chris Peters
>>        Software Engineer - Tasmanian ICT Centre
>>        The Tasmanian ICT Centre is jointly funded by the Australian
>> Government through the Intelligent Island Program and CSIRO.
>>        The Intelligent Island Program is administered by the
>> Tasmanian Department of Economic Development and Tourism.
>>        GPO Box 1538, Hobart, TAS 7001
>>        Castray Esplanade, Hobart, Tasmania
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>>
>>        www.ict.csiro.au
>>        www.csiro.au/science/TasICTCentre.html
>>
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