<div dir="ltr"><div><div>There is no explicit function to remove some unknown non-linear response.<br><br>You must ascertain (eg: eye-ball) the &#39;shape&#39; of the non-linear response and use a function: eg<br>   <a href="http://www.ncl.ucar.edu/Document/Functions/Built-in/lspoly_n.shtml" target="_blank">http://www.ncl.ucar.edu/<wbr>Document/Functions/Built-in/<wbr>lspoly_n.shtml</a><br></div>to generate some baseline. You can remove the non-linear response via (data-lspoly)<br></div>Note: you should plot the output from lspoly_n to make sure it is appropriate.<br><div><div><br>An example of using lspoly is here:<br><a href="http://www.ncl.ucar.edu/Applications/regress.shtml#ex6" target="_blank">http://www.ncl.ucar.edu/<wbr>Applications/regress.shtml#ex6</a><br><br><br></div></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Mon, Jun 26, 2017 at 10:20 AM, SBR climate <span dir="ltr">&lt;<a href="mailto:sbr.climate@gmail.com" target="_blank">sbr.climate@gmail.com</a>&gt;</span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">Hi NCL users,<div>I have generated an area averaged time series where the data is having non-linear trend.Is there any function available to to remove the trend from the time-series having non-linear trend.</div><div><br></div><div>Thanks</div><div>SB</div></div>
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