[ncl-talk] Plotting overlay plot with significance values: SOLVED

Sri Nandini snandini at marum.de
Fri Feb 2 04:11:30 MST 2018


Thank you

That works well now.

















On Feb 1, 2018 5:46:29 PM, Mary Haley wrote:

> The reason you are getting that one plot on top of your panel plot is because you called gsn_panel first, which draws the paneled plots, and then you called:
> 
>    draw (plots)
>    frame(wks)


> > which drew each plot again on top of each other, each in its original large size.  You don't need those two lines, because gsn_panel is already drawing the four plots for you.
> 

> > --Mary
> 

> 
> 
> On Thu, Feb 1, 2018 at 2:57 AM, Sri Nandini via ncl-talk > <> ncl-talk at ucar.edu> >>  wrote:

> > Hello
> > 
> > I tried with and without 
> >   plots(mm)   = gsn_csm_contour_map_polar(wks,> > plots(mm)> > ,res)
> > as well as removing the (mm).
> > 
> > Theres no error:
> > 
> > However the same plot is being plotted (5 instead of 4).
> > 
> > 
> > 
> > 
> > 
> > 

> > On Jan 31, 2018 10:56:28 PM, Mary Haley wrote:

> > > The error message is telling you what the problem is:
> > > 
> > > Argument type mismatch on argument (1) of (gsn_csm_contour_map_polar) can not coerce

> > > 

> > > > > > Argument #1 refers to the second argument in the gsn_csm_contour_map_polar call, because argument count starts at 0.
> > > 

> > > > > > I looked at your > > > gsn_csm_contour_map_polar calls and found this one:
> > > 

> > > > > >   plots(mm)   = gsn_csm_contour_map_polar(wks,> > > plots(mm)> > > ,res)

> > > 

> > > > > > You are trying to pass plots(mm) to > > > gsn_csm_contour_map_polar which doesn't make sense. 
> > > 

> > > > > > You have already called gsn_csm_contour_map_polar earlier in your script and put the plots in plots(mm) via these calls:
> > > 

> > > > > >  plots(0)  = gsn_csm_contour_map_polar(wks,> > > T1diff,res)
> > >  plots(1)  = gsn_csm_contour_map_polar(wks,> > > T2diff,res)
> > >  plots(2)  = gsn_csm_contour_map_polar(wks,> > > T3diff,res)

> > > > > >  plots(3)  = gsn_csm_contour_map_polar(wks,> > > T4diff,res)
> > > 

> > > > > > so I'm not sure why you are trying to call gsn_csm_contour_map_polar again. Try removing or commenting out the offending line and see what happens.
> > > 

> > > > > > ; > > >   plots(mm)   = gsn_csm_contour_map_polar(wks,> > > plots(mm),res)
> > > 

> > > > > > --Mary
> > > 

> > > 

> > > 


> > > 

> > > 

> > > 
> > > 
> > > On Wed, Jan 31, 2018 at 8:47 AM, Sri Nandini via ncl-talk > > > <> > > ncl-talk at ucar.edu> > > >> > >  wrote:
> > > > Hello
> > > > 
> > > > I am trying to plot seasonal (DJF, MAM, JJA, SON) temperature values with thier ttest values (all already calculated and saved in netcdf file).
> > > > 
> > > > I attach my plotting script below:
> > > > And my error is: 
> > > > Argument type mismatch on argument (1) of (gsn_csm_contour_map_polar) can not coerce
> > > > 
> > > > Would appreciate any advice on why the plot turns out like this, see attached.
> > > > 
> > > > ; Reading all seasonal differences and ttest, then overlaying on each plot with the caspian basin shapefile to show the 95% or 99% significance levels
> > > > 
> > > > 
> > > >   latS   =  30.                ; N. Hemisphere
> > > >   latN   =  90. 
> > > > 
> > > > ADD_SHAPEFILE_OUTLINES = True
> > > >   sname = "Caspian_Basin.shp"
> > > > 
> > > > ; ==============================================================
> > > > ; Open the files:Read all the seasonal differences and ttest values 
> > > > ; ==============================================================
> > > > f     = addfile ("T2M_BC_DJF_Diff.nc", "r")
> > > > T1diff    = f->T1diff
> > > > 
> > > > f2 = addfile("T2M_BC_MAM_Diff.nc","r")
> > > > T2diff    = f2->T2diff
> > > > 
> > > > f3 = addfile("T2M_BC_JJA_Diff.nc","r")
> > > > T3diff    = f3->T3diff
> > > > 
> > > > f4 = addfile("T2M_BC_SON_Diff.nc","r")
> > > > T4diff    = f4->T4diff
> > > > 
> > > > ;==================================================================
> > > > f5 = addfile("T2M_BC_DJF_ttest.nc","r")
> > > > probt1    = f5->probt1
> > > > 
> > > > f6 = addfile("T2M_BC_MAM_ttest.nc","r")
> > > > probt2    = f6->probt2
> > > > 
> > > > f7 = addfile("T2M_BC_JJA_ttest.nc","r")
> > > > probt3    = f7->probt3
> > > > 
> > > > f8 = addfile("T2M_BC_SON_ttest.nc","r")
> > > > probt4    = f8->probt4
> > > > 
> > > > ;=====================================================================Start the graphics
> > > >   wks = gsn_open_wks("png","T2M_BC_seasons_diff_ttest_")
> > > > 
> > > >   res                     = True
> > > >   res at gsnDraw             = False
> > > >   res at gsnFrame            = False
> > > >   res at cnFillPalette       = "BlWhRe"            ; select a color map with white in the 
> > > >   res at gsnPolar            = "NH"
> > > >   res at mpGridAndLimbOn     = "False"             ; turn off lat/lon lines
> > > >   res at mpFillOn            = False               ; turn off map fill
> > > > 
> > > >   res at mpMinLatF            = latS               ; zoom in on map
> > > >   res at mpMaxLatF            = latN
> > > > 
> > > >   res at cnLevelSelectionMode = "ManualLevels"     ; manual set levels
> > > >   res at cnMinLevelValF       =-3
> > > >   res at cnMaxLevelValF       = 3
> > > >   res at cnLevelSpacingF      = 0.5                ; contour levels   
> > > >   
> > > >   res at cnFillOn             = True
> > > >   res at cnLinesOn            = False
> > > >   res at cnLineLabelsOn       = False
> > > >   res at cnFillDrawOrder      = "Predraw"          ; fill and lines before map
> > > >   res at mpDataBaseVersion    = "MediumRes"        ; use GMT coastline
> > > > 
> > > >   res at mpGridAndLimbOn      = False              ; set to true if you want grid lines to show
> > > >   res at lbLabelBarOn         = False              ; turn off individual label bars
> > > >   ;res at cnRasterModeOn      = True               ; Raster mode shows grid cells
> > > >   res at gsnRightString       = ""                 ; Turn off subtitles
> > > >   res at gsnLeftString        = ""
> > > > 
> > > > ;==================================Create arrays to hold series of plots
> > > >     plots = new(4,graphic)   
> > > >  
> > > >  plots(0)  = gsn_csm_contour_map_polar(wks,T1diff,res)
> > > > 
> > > >  plots(1)  = gsn_csm_contour_map_polar(wks,T2diff,res)
> > > > 
> > > >  plots(2)  = gsn_csm_contour_map_polar(wks,T3diff,res)
> > > > 
> > > >  plots(3)  = gsn_csm_contour_map_polar(wks,T4diff,res)
> > > >   printVarSummary(plots)
> > > > 
> > > > ;=====================================================================
> > > > ;Second plot resources and overlay onto first
> > > > ;=====================================================================
> > > >   res2 = True                            ; res2 probability plots
> > > >   res2 at gsnDraw             = False       ; Do not draw plot
> > > >   res2 at gsnFrame            = False       ; Do not advance frome
> > > > 
> > > >   res2 at cnLevelSelectionMode = "ExplicitLevels"       ; set explicit cnlev
> > > >   res2 at cnLevels   = (/99./)              ; only have 1 contour level
> > > >   res2 at cnInfoLabelOn       = False
> > > >   res2 at cnLinesOn           = False       ; do not draw contour lines
> > > >   res2 at cnLineLabelsOn      = False       ; do not draw contour labels
> > > >   res2 at cnFillScaleF        = 0.6         ; add extra density
> > > > 
> > > >   res2 at gsnRightString      = ""          ; Turn off subtitles
> > > >   res2 at gsnLeftString       = ""                                 
> > > >   res at gsnAddCyclic         = True        ; add cyclic point
> > > > 
> > > > ;========================================================================
> > > >   opt = True                                         ; set up parameters for pattern fill
> > > >   opt at gsnShadeFillType = "pattern"                   ; specify pattern fill
> > > >   opt at gsnShadeHigh      = 17                         ; stipple pattern
> > > >   opt at gsnShadeDotSizeF = 1                           ; make dots larger
> > > > 
> > > > ;==================================Create arrays to hold series of ttests or make a loop
> > > >     plot2 = new(4,graphic)   
> > > >  
> > > >  plot2(0)  = gsn_csm_contour(wks,probt1,res2) 
> > > > 
> > > >  plot2(1)  = gsn_csm_contour(wks,probt2,res2) 
> > > > 
> > > >  plot2(2)  = gsn_csm_contour(wks,probt3,res2) 
> > > > 
> > > >  plot2(3)  = gsn_csm_contour(wks,probt4,res2) 
> > > >   printVarSummary(plot2)
> > > > ;==========================================================================cycle through seasons
> > > > season = (/"DJF","MAM","JJA","SON"/)
> > > > nof=4
> > > > 
> > > > do mm=0,nof-1
> > > >   res at gsnCenterString = season(mm)
> > > > 
> > > >   plots(mm)   = gsn_csm_contour_map_polar(wks,plots(mm),res)
> > > >   plot2(mm)   = gsn_contour_shade(plot2(mm),1,99., opt)        ; stipple all areas >= 99%  contour    
> > > >    
> > > >   overlay (plots (mm), plot2 (mm))
> > > > end do
> > > > 
> > > >   printVarSummary(plots)
> > > >   printVarSummary(plot2)
> > > > 
> > > > ;=====================================
> > > > ;Attach the polylines and shape
> > > > ;=====================================
> > > >    pres             = True
> > > >    pres at gsLineColor = "black"
> > > >    pres at gsLineThicknessF = 2.0                ; 2x thickness
> > > >    shp1 = gsn_add_shapefile_polylines(wks,plots,sname,pres) 
> > > >    printVarSummary(shp1)
> > > > 
> > > > ;==================================
> > > > ; panel resources for the 4 plots
> > > > ;==================================
> > > >   pres1                     = True             ; modify the panel plot
> > > >   pres1 at gsnPanelLabelBar    = True             ; common label bar
> > > >   pres1 at gsnFrame            = False            ; don't advance frame yet
> > > >   pres1 at lbOrientation       = "Vertical"       ; vertical label bar
> > > >   pres1 at gsnPanelMainString  = "T2m BigCaspian-NoCaspian Seasonal Difference"     
> > > >   pres1 at lbBoxEndCapStyle  = "TriangleBothEnds" ; Added in NCL V6.4.0
> > > >   pres1 at gsnMaximize         = True             ; large format
> > > > 
> > > >    gsn_panel(wks,plots,(/2,2/),pres1)
> > > > 
> > > >    draw (plots)
> > > >    frame(wks)
> > > > 
> > > > 
> > > > 

> > > > _______________________________________________
> > > > 
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> > > > 

> > > 


> > > > 

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