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<div class="moz-cite-prefix">It won't work in several situations and
IMO trying to find a solution for all doesn't work. We need to
find a solution that works and implement methods for the others.
We may try to be consistent with "age" and use [10,11) represented
by "10" in the length names.<br>
<br>
Best<br>
<br>
EJ<br>
<br>
On 05/22/2013 02:43 PM, Laurie Kell wrote:<br>
</div>
<blockquote
cite="mid:CAAJ=99mdaLm-+q7t7f9CspzLJsY7_7Zw1ankc8KXftwVq1sMpA@mail.gmail.com"
type="cite">
<div dir="ltr">
<div>but wont work with age slicing which is based on > &
<=. <br>
<br>
</div>
Laurie<br>
</div>
<div class="gmail_extra"><br>
<br>
<div class="gmail_quote">On Wed, May 22, 2013 at 2:41 PM,
Ernesto <span dir="ltr"><<a moz-do-not-send="true"
href="mailto:ernesto.jardim@jrc.ec.europa.eu"
target="_blank">ernesto.jardim@jrc.ec.europa.eu</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">
<div text="#000000" bgcolor="#FFFFFF">
<div>Hi,<br>
<br>
Yes, that is a problem that we need to sort out. I'm
considering using midpoints. It has the advantage of
being easy to coerce into numeric. In most cases that's
what one needs for computations. Using boundaries will
require other(s) operation(s) to get midpoints.<br>
<br>
Best<br>
<br>
EJ
<div>
<div class="h5"><br>
<br>
On 05/22/2013 02:23 PM, Laurie Kell wrote:<br>
</div>
</div>
</div>
<div>
<div class="h5">
<blockquote type="cite">
<div dir="ltr">
<div>
<div>
<div>There is an issue, boring but may be
important to agree on now, i.e. labeling of
length bins.<br>
<br>
</div>
What does a length bin mean, i.e. if the
"quant" dim represents length? and the values
are 5, 10, ...?<br>
<br>
</div>
In the mixdist package these are the righthand
boundaries i.e. they represent (0,5] and (5,10].
But if they are the lefthand boundaries then
they represent (5,10] and (10,INF]. Or they
could be midpoints. One option would be to
explicitly label the bins with the boundaries
and then have methods for going backwards and
forwards between parametric and non-parametric
methods. Or to have an attribute that tracks the
properties.<br>
<br>
</div>
<div>Otherwise I can see a lot of time being
wasted in stock assessments. well more than
normal.<br>
</div>
Laurie <br>
</div>
<div class="gmail_extra"><br>
<br>
<div class="gmail_quote">On Wed, May 22, 2013 at
1:07 PM, Ernesto <span dir="ltr"><<a
moz-do-not-send="true"
href="mailto:ernesto.jardim@jrc.ec.europa.eu"
target="_blank">ernesto.jardim@jrc.ec.europa.eu</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0
0 0 .8ex;border-left:1px #ccc
solid;padding-left:1ex">
<div>On 05/22/2013 12:02 PM, Ernesto wrote:<br>
<blockquote class="gmail_quote"
style="margin:0 0 0 .8ex;border-left:1px
#ccc solid;padding-left:1ex"> On
05/22/2013 11:34 AM, Sarah Kraak wrote:<br>
<blockquote class="gmail_quote"
style="margin:0 0 0 .8ex;border-left:1px
#ccc solid;padding-left:1ex"> Hi
FLR-guys,<br>
<br>
As you know I am not an active FLR user,
but last year I showed some interest in
whether you have size-based stuff in FLR
(see attached email). In the meanwhile
Coilin Minto and myself have been
working on something (also attached -
note this is a draft of the idea; at the
moment we are working on the code to get
the final graphs out) which we are
coding in R but which could/should
eventually been done in FLR. Perhaps you
are interested.<br>
<br>
Cheers,<br>
Sarah<br>
</blockquote>
<br>
Hi,<br>
<br>
Following Laurie's suggestion I've started
a git repository for length<br>
methods in FLRhttps://<a
moz-do-not-send="true"
href="http://github.com/ejardim/FLMethLen"
target="_blank">github.com/ejardim/FLMethLen</a><br>
<br>
Maybe our first task should be o write
down what we're doing with length<br>
data. Laurie's working on ALKs, so I guess
you're interested in<br>
converting length frequencies to ages for
stock assessment !? We (a4a)<br>
are working on OMs and how to generate
them from length based data so<br>
that uncertainty on the growth model can
be included in the MSE. Sarah<br>
and Colin Minto are working on
selectivity. What else ?<br>
<br>
Best<br>
<br>
EJ<br>
</blockquote>
</div>
Hi,<br>
<br>
I've updated the readme to reflect the latest
messages.
<div>
<div><br>
<br>
EJ<br>
<br>
-- <br>
Ernesto Jardim<<a
moz-do-not-send="true"
href="mailto:ernesto.jardim@jrc.ec.europa.eu"
target="_blank">ernesto.jardim@jrc.ec.europa.eu</a>><br>
Fisheries Scientist<br>
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IPSC Maritime Affairs Unit<br>
EC Joint Research Center<br>
TP 051, Via Enrico Fermi 2749<br>
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<pre cols="72">--
Ernesto Jardim<a moz-do-not-send="true" href="mailto:ernesto.jardim@jrc.ec.europa.eu" target="_blank"><ernesto.jardim@jrc.ec.europa.eu></a>
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EC Joint Research Center
TP 051, Via Enrico Fermi 2749
I-21027 Ispra (VA), Italy
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<pre class="moz-signature" cols="72">--
Ernesto Jardim<a class="moz-txt-link-rfc2396E" href="mailto:ernesto.jardim@jrc.ec.europa.eu"><ernesto.jardim@jrc.ec.europa.eu></a>
Fisheries Scientist
FISHREG – Scientific Support to Fisheries
IPSC Maritime Affairs Unit
EC Joint Research Center
TP 051, Via Enrico Fermi 2749
I-21027 Ispra (VA), Italy
Office : +39 0332 785311
Fax: +39 0332 789658
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