<html><head></head><body><div style="color:#000; background-color:#fff; font-family:verdana, helvetica, sans-serif;font-size:16px"><div id="yui_3_16_0_ym19_1_1515495507640_3034"><span id="yui_3_16_0_ym19_1_1515495507640_3070">Hello dear NCL users,</span></div><div dir="ltr" id="yui_3_16_0_ym19_1_1515495507640_3050"><span id="yui_3_16_0_ym19_1_1515495507640_3058">I am running a NCL script and I am facing a error that I don't understand at all. Actually the script was working perfectly and then it stopped for a reason I ignore. </span></div><div id="yui_3_16_0_ym19_1_1515495507640_3133" dir="ltr"><span id="yui_3_16_0_ym19_1_1515495507640_3058">Actually I am doing a simple xy-plot (with the gsn_csm_xy) and I want to add two reference lines (vertically). But I got the following error:</span></div><div id="yui_3_16_0_ym19_1_1515495507640_4832" dir="ltr"><span id="yui_3_16_0_ym19_1_1515495507640_3058">" ref_line_interp: error: gsnYRefLine must be a scalar or an array of length ncurves". However when I print res@gsnXRefLine it gives me this: <br></span></div><div id="yui_3_16_0_ym19_1_1515495507640_4934" dir="ltr"><span id="yui_3_16_0_ym19_1_1515495507640_3058">(0) 42179<br id="yui_3_16_0_ym19_1_1515495507640_4939">(1) 42197</span></div><div id="yui_3_16_0_ym19_1_1515495507640_4969" dir="ltr"><span id="yui_3_16_0_ym19_1_1515495507640_3058">which proves that they are scalars.</span></div><div id="yui_3_16_0_ym19_1_1515495507640_4970" dir="ltr"><span id="yui_3_16_0_ym19_1_1515495507640_3058">Can anyone please help me?</span></div><div id="yui_3_16_0_ym19_1_1515495507640_4971" dir="ltr"><span id="yui_3_16_0_ym19_1_1515495507640_3058">Please have a look at my code. <br></span></div><div id="yui_3_16_0_ym19_1_1515495507640_4972" dir="ltr"><br><span id="yui_3_16_0_ym19_1_1515495507640_3058"></span></div><div id="yui_3_16_0_ym19_1_1515495507640_4973" dir="ltr"><span id="yui_3_16_0_ym19_1_1515495507640_3058">I'd just like to mention that I have upgraded my NCL from version 6.0.0 to 6.4.0. Could that be the problem?<br></span></div><div id="yui_3_16_0_ym19_1_1515495507640_3049"><div id="yui_3_16_0_ym19_1_1515495507640_4996"> </div><div id="yui_3_16_0_ym19_1_1515495507640_5079">Thank you in advance. <br></div><div id="yui_3_16_0_ym19_1_1515495507640_5008"><br></div></div><div id="yui_3_16_0_ym19_1_1515495507640_3114" class="signature">-----------------------------<br>GUIGMA</div></div></body></html>