Hello Tahereh,<div><br></div><div>This is a website containing quite many scripts for various analysis. There is a RMSE calculation script also called <a href="http://ltrend.gs">ltrend.gs</a>. Please look it and see if it is useful for your work. <a href="http://www.atmos.umd.edu/~bguan/grads/GrADS_Scripts.html">http://www.atmos.umd.edu/~bguan/grads/GrADS_Scripts.html</a></div>
<div><br></div><div>Usually the RMSE calculation is done through the commands:</div><div><br></div><div>"define RMSE=sqrt(ave((A*A),t=t1,t=tn)"</div><div>Where,</div><div>RMSE=Root Mean Square Error</div><div>A=Is the parameter you want to calculate</div>
<div>t1=Time step 1 for you series</div><div>tn=Last time step for your series</div><div>This will give you the plot of a time period.</div><div><br></div><div>OR<br><br>"define RMSE=sqrt(aave((A*A),lon=lon1,lon=lonn,lat=lat1,lat=latn)"</div>
<div>Where</div><div><div>RMSE=Root Mean Square Error</div><div>A=Is the parameter you want to calculate</div><div>Lat1, Latn, Lon1 and Lonn = Tell the extent of your study</div><div>This will give you a time series of RMSE.</div>
<div><br></div>Hopefully this clears your doubt.</div><div><br></div><div>With regards,</div><div>Amulya Chevuturi</div><div>School of Environmental Sciences</div><div>Jawaharlal Nehru University</div><div>New Delhi</div>
<div><br></div><div><div class="gmail_quote">On Tue, Dec 25, 2012 at 9:37 AM, T. haghroosta <span dir="ltr"><<a href="mailto:haghroosta@hotmail.com" target="_blank">haghroosta@hotmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div><div dir="ltr">
Dear All,<br> <br>Could you please tell me how I can calculate RMSE (root mean square error) in Grads and draw relevant graphs?<br> <br> <br>Regards,<br> <br>Tahereh<br> </div></div>
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