<html><body><div style="color:#000; background-color:#fff; font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:16px"><div id="yui_3_16_0_1_1441041602162_7110">Thank you so much Hosmay. </div><div id="yui_3_16_0_1_1441041602162_7110">But how can i remove the undefined values from the file.</div><div id="yui_3_16_0_1_1441041602162_7108"><br></div> <br><div class="qtdSeparateBR"><br><br></div><div class="yahoo_quoted" style="display: block;"> <div style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px;"> <div style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px;"> <div dir="ltr"> <font size="2" face="Arial"> On Monday, August 31, 2015 10:56 PM, Hosmay Lopez <hlopez@rsmas.miami.edu> wrote:<br> </font> </div> <br><br> <div class="y_msg_container"><div id="yiv8768433921"><style type="text/css"></style><div>
<div style="direction:ltr;font-family:Tahoma;color:#000000;font-size:10pt;">Hi Amina,
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<div>I f your precipitation variable is named precip, then you could do:</div>
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<div>Precip_StDev = sqrt(ave(pow(precip , 2), t = 1 , t = nt))</div>
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<div>where, sort function is the square root</div>
<div>ave function is average over time dimension in this case.</div>
<div>pow function is the power function to square precip variable.</div>
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<div>Hope this helps.</div>
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<div style="font-family:Tahoma;font-size:13px;">Hosmay Lopez<br clear="none">
<span style="font-family:verdana, arial, sans-serif;background-color:rgb(255,255,255);">UM/CIMAS/RSMAS NOAA/AOML/PHOD</span><br clear="none" style="font-family:verdana, arial, sans-serif;background-color:rgb(255,255,255);">
<span style="font-family:verdana, arial, sans-serif;background-color:rgb(255,255,255);">4301 Rickenbacker Causeway,</span><br clear="none" style="font-family:verdana, arial, sans-serif;background-color:rgb(255,255,255);">
<span style="font-family:verdana, arial, sans-serif;background-color:rgb(255,255,255);">Miami, FL 33149, USA</span><br clear="none" style="font-family:verdana, arial, sans-serif;background-color:rgb(255,255,255);">
<span style="font-family:verdana, arial, sans-serif;background-color:rgb(255,255,255);">Phone: (305) 361-4329</span><br clear="none">
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<div id="yiv8768433921divRpF646802" style="direction:ltr;"><font face="Tahoma" size="2" color="#000000"><b>From:</b> gradsusr-bounces@gradsusr.org [gradsusr-bounces@gradsusr.org] on behalf of Amina Khan [k.amina93@yahoo.com]<br clear="none">
<b>Sent:</b> Monday, August 31, 2015 1:35 PM<br clear="none">
<b>To:</b> gradsusr@gradsusr.org<br clear="none">
<b>Subject:</b> [gradsusr] how to compute standard deviation in grads<br clear="none">
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<div id="yiv8768433921yui_3_16_0_1_1441041602162_2781">Hi all, </div>
<div dir="ltr" id="yiv8768433921yui_3_16_0_1_1441041602162_2781">I want to compute standard deviation from nc file having precipitation data.</div>
<div dir="ltr" id="yiv8768433921yui_3_16_0_1_1441041602162_2781">There are also some undefined values in file. How can i do this. Please guide me.</div>
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<div dir="ltr" id="yiv8768433921yui_3_16_0_1_1441041602162_2781">Thanks</div>
<div dir="ltr" id="yiv8768433921yui_3_16_0_1_1441041602162_2781">Amina</div>
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