<html><head><meta http-equiv="Content-Type" content="text/html charset=iso-8859-1"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">Sorry! I already have a script calculating the trend/month in each grid. So as I take the aave(trend) I get the trend of the domain I define. However, I'd like to calculate the derivative of this trend line, over time, not only show it in a plot. So if I just could extract the max and min value that would be fine, but if there is a command that could do the same, that would be even better.<div><br></div><div><br><div>
<span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; font-size: medium; "><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; font-size: medium; "><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; font-size: medium; "><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; font-size: medium; "><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; font-size: medium; "><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div>Regards,</div><div><br></div><div>Tobias Lundberg</div><div><br></div><div><a href="mailto:tobias.liljalundberg@gmail.com">tobias.liljalundberg@gmail.com</a></div><div>+46 733 80 27 87</div><div><br></div><div><br></div></div></span></div></span></div></span></span><br class="Apple-interchange-newline"><br></span>
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<br><div><div>5 nov 2012 kl. 22:29 skrev Jeff Duda <<a href="mailto:jeffduda319@gmail.com">jeffduda319@gmail.com</a>>:</div><br class="Apple-interchange-newline"><blockquote type="cite">When you say "trend", do you mean time derivative? Over what domain do you want to find the max and min? If it's a spatial domain, there is a well known set of script command lines that can find an areal max for you. It's not one of the built-in functions of Grads, though.<br>
<br>Jeff<br><br><div class="gmail_quote">On Mon, Nov 5, 2012 at 3:20 PM, Tobias Lundberg <span dir="ltr"><<a href="mailto:tobias.liljalundberg@gmail.com" target="_blank">tobias.liljalundberg@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 style="word-wrap:break-word"><div>Hi all,</div><div><br></div><div>I have a function describing the trend of the 2-m temperature. If I use the gxout stat, I can get the max and min values. But is it possible to do this automatically in any way. </div>
<div><br></div><div>Like,</div><div>define function_max=Max</div><div>define function_min=Min</div><div><br></div><div>Does anyone know? Or even better would be if there is a way to calculate the derivative of the trend line which is plotted?!</div>
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<div>best regards,</div><div><br></div><div>Tobias Lundberg</div><div><br></div><div><a href="mailto:tobias.liljalundberg@gmail.com" target="_blank">tobias.liljalundberg@gmail.com</a></div><div>+46 733 80 27 87</div><div>
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<br></blockquote></div><br><br clear="all"><br>-- <br>Jeff Duda<br>Graduate research assistant<br>University of Oklahoma School of Meteorology<br>Center for Analysis and Prediction of Storms<br><br>
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