<html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><title></title><style type="text/css">.felamimail-body-blockquote {margin: 5px 10px 0 3px;padding-left: 10px;border-left: 2px solid #000088;} </style></head><body>Hello<br><br>I would like to see the significance between NAO and T2m (temperature) after regression but i am not sure which function is appropriate, the t test or the rtest?<br><br>Normally i use <br><br>eof_regres(ne,:,:)=(/ regCoef(eof_ts(ne,:), t2mw(lat|:,lon|:,time|:)) /);<br><br>Could someone please advice on this?<br>The same goes for when i look and plot the trends for example in temperature [1950-2000] and try to stipple the significance values; <br>The ttest on NCL website shows ttest carried out on 2 variables and not on one.<br><br>Much appreciated<br></body></html>