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<p>Thank you Jeff and Stephen, will try to play with const/maskout
first, then I will reinstall my Opengrads and try the if
statement.</p>
<p><br>
</p>
<p>Marian<br>
</p>
<div class="moz-cite-prefix">Dňa 14. 3. 2019 o 15:09 Stephen
McMillan napísal(a):<br>
</div>
<blockquote type="cite"
cite="mid:CA+exxN05iNx7LG7PDGKSz0MY5Utz37-8xhvSiT9Rwom1ADrrXg@mail.gmail.com">
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<div dir="ltr">Marian,
<div><br>
</div>
<div>One correction to what I sent...</div>
<div><br>
</div>
<div>'define A=if(dt>25,0,if(dt>=22,2,6))' added the
second )</div>
<div><br>
</div>
<div>Stephen</div>
</div>
<br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">On Thu, Mar 14, 2019 at 10:06
AM Stephen McMillan <<a
href="mailto:smcmillan@planalytics.com"
moz-do-not-send="true">smcmillan@planalytics.com</a>>
wrote:<br>
</div>
<blockquote class="gmail_quote" style="margin:0px 0px 0px
0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div dir="ltr">Marian,
<div><br>
</div>
<div>If you have the latest version of GrADS or OpenGrADS,
you could do something like this:</div>
<div><br>
</div>
<div>'define dt=t850-t500'</div>
<div>'define A=if(dt>25,0,if(dt>=22,2,6)'</div>
<div>'d A'</div>
<div><br>
</div>
<div>Stephen McMillan</div>
</div>
<br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">On Wed, Mar 13, 2019 at
4:14 PM AMS EmsiWx Bytča <<a
href="mailto:emsiwx@pocasie-bytca.sk" target="_blank"
moz-do-not-send="true">emsiwx@pocasie-bytca.sk</a>>
wrote:<br>
</div>
<blockquote class="gmail_quote" style="margin:0px 0px 0px
0.8ex;border-left:1px solid
rgb(204,204,204);padding-left:1ex">Dear all,<br>
<br>
<br>
I am going crazy combining const/maskout to get what I
need.<br>
<br>
I need to set A according the following:<br>
<br>
A= 0 when T850-T500 >25<br>
<br>
A= 2 when T850-T500 22-25<br>
<br>
A= 6 when T850-T500 <22<br>
<br>
<br>
Would like to ask any master of const/maskout for help.<br>
<br>
<br>
Thank you very much in advance.<br>
<br>
<br>
Marian<br>
<br>
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