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Hi Guys,<br>
<br>
I've been writing an R library to analyse trawl survey data. It all
starts with ICES exchange format. It's still in its infancy and my
programming is crappy. Probably be worth using 'methods' etc. It
probably needs a complete re-write.<br>
The aim is to produce time-series, diversity indices, maps, nos at
age indices etc. in a standardised manner which would be applicable
to all the<br>
data stored by ICES (BTS, IBTS, ALTBITS etc.). Code would only be
acceptable if it did something useful with data in this format. The
library also includes bathymetry data, ITIS species names,
length-weight parameters which makes it particularly handy.<br>
<br>
We could build in all the varied manners in which age-length keys
and nos-at-age indices are calculated across all the Institutes of
Europe etc. Maybe develop methods to combine data from different
surveys etc. etc. Explore spatial models, multinomial models for
ALKs etc. etc. Standardise methods for 'Good Environmental Status'
indicators etc. blah blah. Investigate impacts of 'survey design'.<br>
I've adapted some code from the recent vmstools project too.<br>
<br>
I know that there are 100s of other bits of code out there and
probably other libraries? Let me know if you want to get involved.<br>
I've set up a google repository:<br>
<br>
<a class="moz-txt-link-freetext" href="http://code.google.com/p/datras/">http://code.google.com/p/datras/</a><br>
<br>
If you look at the file Chrons01.r you will see examples of how it
might work on chrons or station files.<br>
<br>
Doug.<br>
<br>
<br>
<br>
On 10/4/2011 10:26 PM, Laurie Kell wrote:
<blockquote
cite="mid:CAAJ=99=X+XVHC_L0YrnrPB9kBcBxbNud5cY7DELHELNGU-_QLw@mail.gmail.com"
type="cite">Just because somebody hears something you say, or
reads something that you write, doesn’t mean you’ve reached them.<br>
<br>
Joey Barton<b><br>
</b>
<br>
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