Ciao Davide,<div><br></div><div>Mille grazie per il tuo aiuto. </div><div><br></div><div>Questa informazione era quella che me mancava per trovare la via.</div><div><br></div><div>Ho potuto fare quello que voleva.</div><div>
<br></div><div>Salutti.</div><div><br></div><div>Eduardo.</div><div><br></div><br><div class="gmail_quote">2010/4/2 Davide Sacchetti <span dir="ltr"><<a href="mailto:davide.sacchetti@arpal.org">davide.sacchetti@arpal.org</a>></span><br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">operators like '>' work for just numbers, not for fields ...<br>
I mean: 5>4 is correct, while vmerId >= 5.0 (pay attention to the<br>
missing 'I' in your script) is not correct: if you want to compare<br>
fields to numbers use maskout function.<br>
<br>
Also if vmerid is a single value field, grads thinks it is a "field": to<br>
retrive the value you may use "query defval vmerid" or simply "display<br>
vmerid" and then parse 'result' using subwrd function.<br>
<br>
hoping I could help<br>
Bye bye<br>
Davide<br>
<div><div></div><div class="h5"><br>
On Fri, 2010-04-02 at 09:10 -0300, Eduardo Agosta Scarel wrote:<br>
> Hello Matt and Grads' Users,<br>
><br>
><br>
> you are righ and I am sorry for the mistake. I wrote a quick script as<br>
> an example.<br>
><br>
><br>
> The corrected way is:<br>
><br>
><br>
> j=1<br>
> i=0<br>
> while (j < 31)<br>
> 'set t 27'<br>
> 'set lat 0'<br>
> 'set lon 0 360'<br>
> 'define vmerid=ave(vwnd(t='j'), lat=0, lat=10)'<br>
> v='vmerid'<br>
> if (vmerd >= 5.0 & vmerid <= 5.0)<br>
> i=i+1<br>
> endif<br>
> j=j+1<br>
> endwhile<br>
><br>
><br>
> Anyway that is not the problem.<br>
> What I want to do is to evaluate every value obtained for the defined<br>
> vmerid variable against the thresholds in order to count those cases.<br>
><br>
><br>
> Thank you for your help.<br>
><br>
><br>
> Eduardo.<br>
><br>
><br>
><br>
><br>
> 2010/4/2 Matt Alonso <<a href="mailto:matt.alonso@gmail.com">matt.alonso@gmail.com</a>><br>
> I might be missing something but it doesn't look like j will<br>
> ever be anything other than 1. Is that what you are intending<br>
> to do?<br>
><br>
> Sent from my Verizon Wireless BlackBerry<br>
><br>
><br>
> ______________________________________________________________<br>
> From: Eduardo Agosta Scarel <<a href="mailto:eduardo.agosta@GMAIL.COM">eduardo.agosta@GMAIL.COM</a>><br>
> Date: Fri, 2 Apr 2010 08:50:23 -0300<br>
> To: <<a href="mailto:GRADSUSR@LIST.CINECA.IT">GRADSUSR@LIST.CINECA.IT</a>><br>
> Subject: if/endif use with defined variables<br>
><br>
><br>
><br>
> Hi you all!<br>
><br>
><br>
> I am trying to use the values obtained for a defined variable<br>
> within an if/endif construction, but it appears that the<br>
> script does not read in fact every value (which must be<br>
> compared with a certain threshold).<br>
><br>
><br>
> Any suggestion for that?<br>
><br>
><br>
> I will much appreciate.<br>
><br>
><br>
> Eduardo.<br>
><br>
><br>
><br>
><br>
> PS: E.g. of what I want to do: to count the numbers of days<br>
> when the defined variable is below or over a threshold:<br>
><br>
><br>
> j=1<br>
> i=0<br>
> while (j < 31)<br>
> 'set t 27'<br>
> 'set lat 0'<br>
> 'set lon 0 360'<br>
> 'define vmerid=ave(vwnd(t='j'), lat=0, lat=10)'<br>
> v='vmerid'<br>
> if (vmerd >= 5.0 & vmerid <= 5.0)<br>
> i=i+1<br>
> endif<br>
> enwhile<br>
><br>
><br>
><br>
><br>
> --<br>
><br>
> <a href="mailto:eduardo.agosta@conicet.gov.ar">eduardo.agosta@conicet.gov.ar</a><br>
> <a href="mailto:eduardo_agosta@uca.edu.ar">eduardo_agosta@uca.edu.ar</a><br>
><br>
><br>
><br>
><br>
> --<br>
> Eduardo Agosta Scarel<br>
><br>
> <a href="mailto:eduardo.agosta@conicet.gov.ar">eduardo.agosta@conicet.gov.ar</a><br>
> <a href="mailto:eduardo_agosta@uca.edu.ar">eduardo_agosta@uca.edu.ar</a><br>
><br>
<br>
<br>
</div></div><font color="#888888">--<br>
Sacchetti Davide<br>
Centro Funzionale Meteo Idrologico di Protezione Civile della Regione Liguria<br>
ARPAL Unità Tecnica Complessa di livello Regionale<br>
V.le Brigare Partigiane 2 16121 Genova (I)<br>
tel: +39 010 6437535 fax: +39 010 6437520<br>
mail: <a href="mailto:davide.sacchetti@arpal.org">davide.sacchetti@arpal.org</a> web: <a href="http://www.meteoliguria.it" target="_blank">www.meteoliguria.it</a><br>
</font></blockquote></div><br><br clear="all"><br>-- <br>Eduardo Agosta Scarel<br><br><a href="mailto:eduardo.agosta@conicet.gov.ar">eduardo.agosta@conicet.gov.ar</a><br><a href="mailto:eduardo_agosta@uca.edu.ar">eduardo_agosta@uca.edu.ar</a><br>