<html><head></head><body><div style="font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:16px;"><div style="font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:16px;"><div style="font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:16px;"><span><div style="font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px;"><div><span style="font-family: Helvetica, Arial, sans-serif;">Hi,</span><br clear="none"></div><div><span style="font-family: Helvetica, Arial, sans-serif;"><br clear="none"></span></div></div><div class="ydp738354f0yiv1900104557ydpdb942961yahoo_quoted" id="ydp738354f0yiv1900104557ydpdb942961yahoo_quoted_4086371675" style="font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px;"><div style="font-size: 13px;"><div id="ydp738354f0yiv1900104557ydpdb942961yiv6697017135"><div style="font-size: 16px;"><div style="font-family: Helvetica, Arial, sans-serif;">I need to separate CP and EP El Ni<span><span style="color: rgb(0, 0, 0); font-family: Helvetica, Arial, sans-serif; font-size: 16px; text-align: center;">ñ</span></span>o years by the method used in a paper (<i>A new method to classify ENSO events into eastern and central Pacific types)</i>. I have obtained an (1D) EOF-based pattern correlation coefficient array (say EPC1). Then the author says: </div><div style="font-family: Helvetica, Arial, sans-serif;"><br clear="none"></div><div style="text-align: center; font-family: Helvetica, Arial, sans-serif;">" The EP type El Niño is defined as the case when the EPC1 index is equal to or greater than 0.79 which is significant at the 90% confidence level from the two-tailed Student’s t-test."</div><div style="font-family: Helvetica, Arial, sans-serif;"><br clear="none"></div><div style="font-family: Helvetica, Arial, sans-serif;">How author has calculated 0.79? Does NCL has a function for that? It has been 2 weeks i am asking for a solution. please help me.</div></div></div></div></div></span></div></div></div></body></html>