<div dir="ltr">Hi Sun,<div>I&#39;m not sure if you missed pasting the last line of your script, but I think you need: </div><div>frame(wks)</div><div>at the end of the script for the frame to be completed. If the frame is not completed you may get a plot that is incomplete.</div><div><br></div><div>If you do have that line in your code let ncl-talk know.</div><div>Adam </div></div><div class="gmail_extra"><br><div class="gmail_quote">On Wed, Mar 2, 2016 at 2:47 PM, mireiyue <span dir="ltr">&lt;<a href="mailto:mireiyue@gmail.com" target="_blank">mireiyue@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">Dear NCL users<br>
<br>
I am trying to plot three different data with three regression lines in one plot. I can plot all data in one plot but the regression line only plot the first one.  How I can plot all three regression lines in one plot? I do appreciate any helps!! Thank you!!<br>
<br>
Sun-<br>
<br>
 rc =  regline_stats(calextd,merracmf)<br>
 print(rc)<br>
 pltarry   = new((/2,dimsizes(calextd)/),typeof(calextd))<br>
 pltarry(0,:) = merracmf                                ; use markers<br>
 pltarry(1,:) = rc*(calextd-rc@xave) + rc@yintercept          ; use solid line<br>
 printVarSummary(pltarry)<br>
<br>
 rc1 = regline_stats(camMextd,camMcmf)<br>
 print(rc1)<br>
 pltarry1   = new((/2,dimsizes(camMextd)/),typeof(camMextd))<br>
 pltarry1(0,:) = camMcmf                                ; use markers<br>
 pltarry1(1,:) = rc*(camMextd-rc@xave) + rc@yintercept          ; use solid line<br>
 printVarSummary(pltarry1)<br>
<br>
 rc2 = regline_stats(camextd,camcmf)<br>
 print(rc2)<br>
 pltarry2   = new((/2,dimsizes(camextd)/),typeof(camextd))<br>
 pltarry2(0,:) = camcmf                                ; use markers<br>
 pltarry2(1,:) = rc*(camextd-rc@xave) + rc@yintercept          ; use solid line<br>
 printVarSummary(pltarry2)<br>
<br>
wks   = gsn_open_wks(&quot;eps&quot;,&quot;Global&quot;)<br>
res                   = True                     ; plot mods desired<br>
res@gsnDraw     = False      ; Will draw later, after overlaying<br>
res@gsnFrame    = False      ; all plots<br>
; res@gsnMaximize       = False<br>
res@trXMinF              = 0.<br>
res@trYMinF              = 0.<br>
<br>
res@xyMarkLineModes   = (/“Markers”,”Lines”/) ; choose which have markers<br>
res@xyExplicitLegendLabels = “A&quot;<br>
res@pmLegendParallelPosF   = 0.35<br>
res@xyMarkers         = &quot;16&quot;                     ; choose type of marker<br>
res@xyMarkerColor     = &quot;darkgreen&quot;              ; Marker color<br>
res@xyMarkerSizeF       = 0.01                  ; Marker size (default 0.01)<br>
res@xyLineColor         = &quot;black&quot;<br>
res@xyLineThicknesses   = 1 ;(/1,2/)<br>
res@xyDashPatterns      = 0                      ; solid line<br>
plot2  = gsn_csm_xy (wks,calextd,pltarry(0:1,:),res)<br>
<br>
res@xyMarkers         = &quot;7&quot;                     ; choose type of marker<br>
res@xyMarkerColor     = &quot;blue&quot;              ; Marker color<br>
res@xyMarkerSizeF       = 0.01                  ; Marker size (default 0.01)<br>
res@xyExplicitLegendLabels = “B&quot;<br>
res@pmLegendParallelPosF   = 0.79<br>
res@xyLineColor         = &quot;red&quot;<br>
res@xyLineThicknesses   = 1 ;(/1,2/)<br>
res@xyDashPatterns      = 0                      ; solid line<br>
plot1  = gsn_csm_xy (wks,camMextd,pltarry1(0:1,:),res)<br>
<br>
res@xyExplicitLegendLabels = “C&quot;<br>
res@pmLegendParallelPosF   = 1.2<br>
res@xyMarkers         = &quot;12&quot;                     ; choose type of marker<br>
res@xyMarkerColor     = &quot;red&quot;              ; Marker color<br>
res@xyMarkerSizeF       = 0.01                  ; Marker size (default 0.01)<br>
res@xyLineColor         = &quot;blue&quot;<br>
res@xyLineThicknesses   = 1 ;(/1,2/)<br>
res@xyDashPatterns      = 0                      ; solid line<br>
plot =gsn_csm_xy (wks,camextd,pltarry2(0:1,:),res)<br>
<br>
overlay(plot,plot1)<br>
overlay(plot,plot2)<br>
draw(plot)            ; This will draw all four plots<br>
<br>
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<br></blockquote></div><br><br clear="all"><div><br></div>-- <br><div class="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div><div><span><font color="#888888">Adam Phillips <br></font></span></div><span><font color="#888888">Associate Scientist,  </font></span><span><font color="#888888">Climate and Global Dynamics Laboratory, NCAR<br></font></span></div></div><div><span><font color="#888888"><a href="http://www.cgd.ucar.edu/staff/asphilli/" target="_blank">www.cgd.ucar.edu/staff/asphilli/</a>   </font></span><span><font color="#888888">303-497-1726 </font></span></div><span><font color="#888888"></font></span><div><div><span><font color="#888888"><br></font></span><div><span><font color="#888888"><a href="http://www.cgd.ucar.edu/staff/asphilli" target="_blank"></a></font></span></div></div></div></div></div></div></div></div></div></div></div>
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