<html>
<head>
<meta content="text/html; charset=windows-1252"
http-equiv="Content-Type">
</head>
<body bgcolor="#FFFFFF" text="#000000">
<br>
This should produce a variable "t2mtotal" that is equal to the sum
of all previous and current values (not including the value at the
first time step). It will only be defined for t=2, 3 and 4 (not
t=1, and not t= something greater than four), but you can change
this in the "set t 2 4" line.<br>
<br>
'set dfile 1'<br>
<br>
'set tonsofoptions'<br>
'set tonsofoptions1'<br>
'set tonsofoptions2'<br>
<br>
'set t 2 4'<br>
'define t2mtotal = sum ( tmp2m-273.15, t=2, t+0 )'<br>
'd t2mtotal'<br>
<br>
'set string 1 tl 0 0'<br>
'set strsiz 0.13'<br>
'draw string 0.4 8.35 Sample String'<br>
<br>
<div class="moz-cite-prefix">On 10/20/15 1:53 PM, Christopher Gilroy
wrote:<br>
</div>
<blockquote
cite="mid:CAFCiPe=vzc0k=a0ESpYP2qgNxc8b2MMpK5VdigmLKe6w1yrMew@mail.gmail.com"
type="cite">
<div dir="ltr">Hey Jeff (and Jim),
<div><br>
</div>
<div>Thanks for the replies!</div>
<div><br>
</div>
<div>I download and process all plots one at a time because I
download them in real-time, as they become available. Not all
files are available at the same time, unless ftpprd's NOMADS
server is slow to replicate the data, heh. Everything works
great having something (again simple, but still the majority
jist of the code) like this:</div>
<div><br>
</div>
<div>
<div>'open /gfsmodeldata/gfs.ctl'</div>
<div>'set dfile 1'</div>
</div>
<div><br>
</div>
<div>'set tonsofoptions'</div>
<div>'set tonsofoptions1'<br>
</div>
<div>'set tonsofoptions2'<br>
</div>
<div><br>
</div>
<div>
<div style="font-size:12.8px">if (t=2)<br>
</div>
<div style="font-size:12.8px">
<div>'set t 2'<br>
</div>
<div>'define t2m06 = tmp2m-273.15'<br>
</div>
<div><br>
</div>
<div>'define t2mtotal= t2m06' <br>
</div>
<div>'d t2mtotal'<br>
</div>
<div>endif</div>
<div><br>
</div>
<div>if (t=3)</div>
<div>
<div>'set t 2'<br>
</div>
<div>'define t2m06 = tmp2m-273.15'<br>
</div>
<div><br>
</div>
</div>
<div>'set t 3'</div>
<div>'define t2m12 = tmp2m-273.15'</div>
<div><br>
</div>
<div>'define t2mtotal= t2m06+t2m12' <br>
</div>
<div>'d t2mtotal'<br>
</div>
<div>endif</div>
</div>
<div style="font-size:12.8px"><br>
</div>
<div style="">
<div style="font-size:12.8px">if (t=4)</div>
<div style="font-size:12.8px">
<div>'set t 2'<br>
</div>
<div>'define t2m06 = tmp2m-273.15'<br>
</div>
<div><br>
</div>
</div>
<div style="font-size:12.8px">'set t 3'</div>
<div style="font-size:12.8px">'define t2m12 = tmp2m-273.15'</div>
<div style="font-size:12.8px"><br>
</div>
<div style="font-size:12.8px">
<div>'set t 4'</div>
<div>'define t2m18 = tmp2m-273.15'</div>
</div>
<div style="font-size:12.8px"><br>
</div>
<div style="font-size:12.8px">'define t2mtotal=
t2m06+t2m12+t2m18' <br>
</div>
<div style="font-size:12.8px">'d t2mtotal'<br>
</div>
<div style="font-size:12.8px">endif</div>
<div style="font-size:12.8px"><br>
</div>
<div style="">
<div style=""><span style="font-size:12.8px">'set string 1
tl 0 0'</span></div>
<div style=""><span style="font-size:12.8px">'set strsiz
0.13'</span></div>
<div style=""><span style="font-size:12.8px">'draw string
0.4 8.35 Sample String'</span></div>
<div style=""><span style="font-size:12.8px"><br>
</span></div>
<div style=""><span style="font-size:12.8px"><br>
</span></div>
<div style=""><span style="font-size:12.8px">But as I said
I was just curious if there was an easier way than
having to have a huge IF block to do it. I'm going to
play with Jims example since that may very well work
after I play with it.</span></div>
<div style=""><span style="font-size:12.8px"><br>
</span></div>
</div>
</div>
</div>
<div><br>
</div>
</div>
<div class="gmail_extra"><br>
<div class="gmail_quote">On Tue, Oct 20, 2015 at 7:28 PM, Jeff
Duda <span dir="ltr"><<a moz-do-not-send="true"
href="mailto:jeffduda319@gmail.com" target="_blank">jeffduda319@gmail.com</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">
<div dir="ltr">
<div>
<div>If you're trying to process the files one-by-one
(and I'm assuming each file represents only one time
step), then I don't see a simple way of integrating
over time as you desire. Is there a specific reason
you are not doing a batch download (of all the files
first)? Also, if you really are going to do this
sequentially, I would think you'd have to include the
shell command prompt (!) in your script so that you
could create a control file and open it as you go
through the times. I didn't see that in your code
example.<br>
<br>
</div>
Basically, what I'm trying to say is, coding wise, it
would be much easier if you just downloaded all the
files first, then processed them all at once. If you
absolutely must process the files sequentially, I think
you're going to be stuck hard coding each and every
step.<br>
<br>
</div>
Jeff Duda<br>
</div>
<div class="gmail_extra">
<div>
<div class="h5"><br>
<div class="gmail_quote">On Tue, Oct 20, 2015 at 2:24
PM, James T. Potemra <span dir="ltr"><<a
moz-do-not-send="true"
href="mailto:jimp@hawaii.edu" target="_blank"><a class="moz-txt-link-abbreviated" href="mailto:jimp@hawaii.edu">jimp@hawaii.edu</a></a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">
<div bgcolor="#FFFFFF" text="#000000">
Christopher,<br>
<br>
How about this, e.g., for the first 10 time
steps:<br>
<br>
'set t 1 10'<br>
'define t2mtotal = sum ( tmp2m-273.15, t=1, t+0
)'<br>
'd t2mtotal'<br>
<br>
Jim
<div>
<div><br>
<br>
<div>On 10/20/15 3:42 AM, Christopher Gilroy
wrote:<br>
</div>
</div>
</div>
<blockquote type="cite">
<div>
<div>
<div dir="ltr">Ok, so I know I can
'easily' do this via a massive if block
but I'm trying to avoid that, and I have
been. I have a calculation that will
return a unique value depending on which
t it's running on.
<div><br>
</div>
<div>So when I get to t=10 I need to run
a calculation on data contained in
t=1, t=2, t=3, etc. t=20 would need to
run the calculation t=1, t=2, t=3, etc
up to t=20. The actual value of of
each t would be the same for the
entire run if that helps to understand
though.</div>
<div><br>
</div>
<div>So take this horrible example:</div>
<div><br>
</div>
<div>'define t2m = tmp2m-273.15'<br>
</div>
<div>'d t2m+allpreviousforecasthourt2ms'</div>
<div><br>
</div>
<div>Now, the other key is that I don't
download all files and then run in one
big loop. I download each file
one-by-one and process one-by-one, in
real-time, as they are released.</div>
<div><br>
</div>
<div>A real snippet of how I'm currently
achieving this would look like:</div>
<div><br>
</div>
<div>if (t=2)<br>
</div>
<div>
<div>'set t 2'<br>
</div>
<div>'define t2m06 = tmp2m-273.15'<br>
</div>
<div><br>
</div>
<div>'define t2mtotal= t2m06' <br>
</div>
<div>'d t2mtotal'<br>
</div>
<div>endif</div>
<div><br>
</div>
<div>if (t=3)</div>
<div>
<div>'set t 2'<br>
</div>
<div>'define t2m06 = tmp2m-273.15'<br>
</div>
<div><br>
</div>
</div>
<div>'set t 3'</div>
<div>'define t2m12 = tmp2m-273.15'</div>
<div><br>
</div>
<div>'define t2mtotal= t2m06+t2m12' <br>
</div>
<div>'d t2mtotal'<br>
</div>
<div>endif</div>
</div>
<div><br>
</div>
<div>
<div>if (t=4)</div>
<div>
<div>'set t 2'<br>
</div>
<div>'define t2m06 = tmp2m-273.15'<br>
</div>
<div><br>
</div>
</div>
<div>'set t 3'</div>
<div>'define t2m12 = tmp2m-273.15'</div>
<div><br>
</div>
<div>
<div>'set t 4'</div>
<div>'define t2m18 = tmp2m-273.15'</div>
</div>
<div><br>
</div>
<div>'define t2mtotal=
t2m06+t2m12+t2m18' <br>
</div>
<div>'d t2mtotal'<br>
</div>
<div>endif</div>
</div>
<div><br>
</div>
<div><br>
</div>
<div><br>
</div>
<div>So, whether t2m06 is ran during
hour 06, 12, 18, 240, etc t2m06 is
going to be the exact same value. As
you can see, the if blocks get
exponentially bigger each t and that's
what concerns me in terms of grads
memory limits or if there's simply a
better/faster approach.</div>
<div> </div>
</div>
<br>
<fieldset></fieldset>
<br>
</div>
</div>
<pre>_______________________________________________
gradsusr mailing list
<a moz-do-not-send="true" href="mailto:gradsusr@gradsusr.org" target="_blank">gradsusr@gradsusr.org</a>
<a moz-do-not-send="true" href="http://gradsusr.org/mailman/listinfo/gradsusr" target="_blank">http://gradsusr.org/mailman/listinfo/gradsusr</a>
</pre>
</blockquote>
<br>
</div>
<br>
_______________________________________________<br>
gradsusr mailing list<br>
<a moz-do-not-send="true"
href="mailto:gradsusr@gradsusr.org"
target="_blank">gradsusr@gradsusr.org</a><br>
<a moz-do-not-send="true"
href="http://gradsusr.org/mailman/listinfo/gradsusr"
rel="noreferrer" target="_blank">http://gradsusr.org/mailman/listinfo/gradsusr</a><br>
<br>
</blockquote>
</div>
<br>
<br clear="all">
<br>
</div>
</div>
<span class="HOEnZb"><font color="#888888">-- <br>
<div>Jeff Duda<br>
Graduate research assistant<br>
University of Oklahoma School of Meteorology<br>
Center for Analysis and Prediction of Storms<br>
</div>
</font></span></div>
<br>
_______________________________________________<br>
gradsusr mailing list<br>
<a moz-do-not-send="true"
href="mailto:gradsusr@gradsusr.org">gradsusr@gradsusr.org</a><br>
<a moz-do-not-send="true"
href="http://gradsusr.org/mailman/listinfo/gradsusr"
rel="noreferrer" target="_blank">http://gradsusr.org/mailman/listinfo/gradsusr</a><br>
<br>
</blockquote>
</div>
<br>
<br clear="all">
<div><br>
</div>
-- <br>
<div class="gmail_signature">-Chris A. Gilroy</div>
</div>
<br>
<fieldset class="mimeAttachmentHeader"></fieldset>
<br>
<pre wrap="">_______________________________________________
gradsusr mailing list
<a class="moz-txt-link-abbreviated" href="mailto:gradsusr@gradsusr.org">gradsusr@gradsusr.org</a>
<a class="moz-txt-link-freetext" href="http://gradsusr.org/mailman/listinfo/gradsusr">http://gradsusr.org/mailman/listinfo/gradsusr</a>
</pre>
</blockquote>
<br>
</body>
</html>