<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class=""><div class=""><br class=""></div><div class="">ok, thanks. more questions — </div><div class=""><br class=""></div><div class="">So, “data” is a matrix of dimensions 345960 by 6.</div><div class=""><br class=""></div><div class="">1) what is the 6 dimension? what are the 6 "fields"?</div><div class=""><br class=""></div><div class="">2) regarding the 345960 dimension — </div><div class="">nlat x nlon = 720x1440 = 1036800, which is larger than 345960.</div><div class="">So, each one of the 6 dimensions cannot be a map, given the nlat and nlon dimension you specify.</div><div class=""><br class=""></div><div class="">I give up!</div><div class=""><br class=""></div><div class=""><br class=""></div><div class=""><br class=""></div><br class="">
<div><br class=""><blockquote type="cite" class=""><div class="">On Mar 30, 2021, at 2:41 PM, dale zuri via ncl-talk <<a href="mailto:ncl-talk@mailman.ucar.edu" class="">ncl-talk@mailman.ucar.edu</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div dir="ltr" class=""><br class=""><br class=""><div class="gmail_quote"><div dir="ltr" class="gmail_attr">---------- Forwarded message ---------<br class="">From: <b class="gmail_sendername" dir="auto">dale zuri</b> <span dir="auto" class=""><<a href="mailto:dalezuri@gmail.com" class="">dalezuri@gmail.com</a>></span><br class="">Date: Tue, Mar 30, 2021 at 12:36 PM<br class="">Subject: Re: [ncl-talk] sub: read ascii error<br class="">To: Alessandra Giannini <<a href="mailto:alesall@iri.columbia.edu" class="">alesall@iri.columbia.edu</a>><br class=""></div><br class=""><br class=""><div dir="ltr" class=""><div class="">Hi,</div><div class="">Thanks for your response. <br class=""></div><div class="">Variable: data<br class="">Type: float<br class="">Total Size: 8303040 bytes<br class=""> 2075760 values<br class="">Number of Dimensions: 2<br class="">Dimensions and sizes: [345960] x [6]<br class="">Coordinates: <br class="">Number Of Attributes: 1</div></div><br class=""><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Tue, Mar 30, 2021 at 12:00 PM Alessandra Giannini <<a href="mailto:alesall@iri.columbia.edu" target="_blank" class="">alesall@iri.columbia.edu</a>> wrote:<br class=""></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div class=""><div class=""><br class=""></div><div class=""><br class=""></div>Hi there, <div class=""><br class=""></div><div class="">can you print out:</div><div class=""><br class=""></div><div class="">printVarSummary(data)</div><div class=""><br class=""></div><div class="">?</div><div class=""><br class=""></div><div class="">are lat and lon really included in the matrix called “data”?</div><div class="">The way you define “templat” and “templon”, they should have the same dimension. (Is said dimension nlat x nlon?)</div><div class=""><br class=""></div><div class="">At any rate, lon and lat should be 1-dimensional. </div><div class=""><br class=""><div class="">Rule #0 of ncl-talk is that you should have an idea of the structure of your data…</div><div class="">Maybe you do, but you are not telling us!</div><div class=""><br class=""></div><div class="">warm regards, alessandra</div><div class=""><br class=""></div><div class=""><br class=""><div class=""><br class=""></div><div class=""><br class="">
<div class=""><br class=""><blockquote type="cite" class=""><div class="">On Mar 30, 2021, at 1:45 PM, dale zuri via ncl-talk <<a href="mailto:ncl-talk@mailman.ucar.edu" target="_blank" class="">ncl-talk@mailman.ucar.edu</a>> wrote:</div><br class=""><div class=""><div dir="ltr" class=""><div class="">Hi Adam,</div><div class="">I would appreciate any help to plot this ASCII data. <br class=""></div><div class=""><br class=""></div><div class="">Thanks</div><div class="">DZ<br class=""></div><div class=""><br class=""></div><div class=""><br class=""><div class="gmail_quote"><div dir="ltr" class="gmail_attr">---------- Forwarded message ---------<br class="">From: <b class="gmail_sendername" dir="auto">dale zuri</b> <span dir="auto" class=""><<a href="mailto:dalezuri@gmail.com" target="_blank" class="">dalezuri@gmail.com</a>></span><br class="">Date: Tue, Mar 30, 2021 at 10:24 AM<br class="">Subject: sub: read ascii error<br class="">To: Ncl-talk <<a href="mailto:ncl-talk@ucar.edu" target="_blank" class="">ncl-talk@ucar.edu</a>><br class=""></div><br class=""><br class=""><div dir="ltr" class=""><div class="">Dear NCL user,</div><div class="">I would appreciate any help to plot this data. I'm getting this error. <br class=""></div><div class=""><br class=""></div><div class="">Thanks in advance</div><div class="">DZ<br class=""></div><div class=""><br class=""></div><div class="">fatal:Variable (lat) is undefined<br class="">fatal:["Execute.c":8637]:Execute: Error occurred at or near line 18 in file test.ncl<br class=""><br class=""><br class=""></div><div class=""><br class=""></div><div class=""><br class=""></div><div class="">begin<br class="">nlat=720<br class="">nlon=1440<br class=""><br class="">ncol = 6<br class="">nhead = 1<br class=""><br class="">fname = "avhrr_seaice"<br class="">data = readAsciiTable("avhrr_seaice", ncol, "float", nhead)<br class="">temp12D = onedtond(data(2,:),(/nlat,nlon/)) ; convert 1D array to a 2D array<br class="">temp22D = onedtond(data(3,:),(/nlat,nlon/)) ; convert 1D array to a 2D array<br class="">templat = data(0,:) ; convert 1D array to a 2D array<br class="">templon = data(1,:) ; convert 1D array to a 2D array<br class="">; Assign named dimensions<br class=""> temp12D!0 = "lat"<br class=""> temp12D!1 = "lon"<br class=""> temp12D&lat = templat ; assign coord variables<br class=""> temp12D&lon = templon <br class=""> temp22D!0 = "lat"<br class=""> temp22D!1 = "lon"<br class=""> temp22D&lat = templat ; assign coord variables<br class=""> temp22D&lon = templon <br class=""> temp12D&lat@units = "degrees_north"<br class=""> temp12D&lon@units = "degrees_east" <br class=""> temp22D&lat@units = "degrees_north"<br class=""> temp22D&lon@units = "degrees_east"<br class="">; Assign coordinate variables<br class=""> printVarSummary(temp12D) <br class=""> printVarSummary(temp22D) <br class=""><br class="">wks = gsn_open_wks("x11","test") ; send graphics to PNG file<br class=""><br class=""> plot = new(2,graphic)<br class=""> cmap = read_colormap_file("UKM_hadcrut"); choose colormap<br class="">;<br class=""><br class="">res = True ; plot mods desired<br class=""> res@cnFillOn = True ; turn on color<br class="">;res@mpShapeMode = "FreeAspect"<br class="">res@vpWidthF = 0.3<br class="">res@vpHeightF = 0.2<br class="">; res@cnFillPalette 2 = "grads_rainbow" ; choose colormap<br class=""> res@cnFillPalette = cmap ; choose colormap<br class=""> res@gsnPolar = "NH" ; specify the hemisphere<br class="">res@gsnDraw = False<br class=""> res@gsnFrame = False<br class=""> res@gsnTickMarksOn = False<br class=""> res@mpMinLatF = 50 ; specify min lat<br class="">; res@mpMinLatF = minlatt ; specify min lat<br class="">;res@mpMaxLatF = maxlatt <br class=""> res@trGridType = "TriangularMesh"<br class=""> res@cnLinesOn = False ; True is default<br class="">;res@mpFillOn = False ; turns off continent gray<br class=""> res@cnLineLabelsOn = False ; True is default<br class="">res@mpGridAndLimbOn = False<br class="">res@mpLabelFontHeightF = "22"<br class="">res@mpPerimLineThicknessF = 2<br class="">res@mpOutlineOn = True<br class="">; res@mpLandFillColor = "tan"<br class="">;res@tiMainString = ""+type+"-"+mon+""<br class=""> res@lbLabelBarOn = False ; turn off individual lb's<br class=""><br class=""> res@gsnLeftString = "" ; no titles<br class=""> res@gsnRightString = ""<br class=""> res@tiXAxisString = ""<br class=""> res@tiYAxisString = ""<br class=""> res@cnLevelSelectionMode = "ManualLevels" ; set manual contour levels<br class=""> res@cnMinLevelValF = 0;0 ; set min contour level<br class=""> res@cnMaxLevelValF = 100 ;6 ; set max contour level<br class=""> res@cnLevelSpacingF = 10;0.5 ; set contour spacing<br class=""><br class=""><br class="">;res@lbOrientation = "Horizontal"<br class="">;res@lbLabelFontHeightF = 0.014 <br class="">;res@lbLabelFont = "22"<br class="">; res@lbTitleString = ""+type+""<br class="">; res@lbTitleString = " (deg C)" ; bar title<br class="">; res@lbTitlePosition = "Right" ; title location<br class="">; res@lbTitleDirection = "Across" ; letter angle<br class="">; res@lbTitleAngleF = 90. ; title angle<br class="">; res@lbTitleFontHeightF = 0.02 ; font height<br class=""> res@gsnStringFont = "helvetica-bold" ; will be used for gsnCenterString later<br class=""> res@gsnCenterStringFontHeightF = 0.014<br class="">res@gsnCenterString = "NDJFM"<br class=""> plot(0) = gsn_csm_contour_map_polar(wks,temp12D(:,0),res)<br class="">res@gsnCenterString = "JJAS"<br class=""> plot(1) = gsn_csm_contour_map_polar(wks,temp22D(:,1),res)<br class="">;********************************<br class="">;;;;;Contour plot;;;;;;;;;;;;;;;<br class="">;********************************<br class="">; panel plot only resources<br class="">;********************************<br class="">; panel plot only resources<br class="">; panel plot only resources<br class=""> resP = True ; modify the panel plot<br class=""> resP@gsnMaximize = True ; large format<br class=""> resP@gsnPanelLabelBar = True ; add common colorbar<br class="">resP@lbLabelFontHeightF = 0.012<br class=""> resP@gsnPanelBottom = 0.2;;;increases figure size ; shrink panel plot by setting bottom edge of plot<br class=""> resP@gsnPanelTop = 0.9 ; shrink panel plot by setting top edge of plot<br class=""> resP@pmLabelBarWidthF = 0.50 ; make thinner/small number<br class="">; resP@pmLabelBarHeightF = 0.05<br class=""> resP@pmLabelBarHeightF = 0.08<br class="">resP@pmLabelBarOrthogonalPosF = -0.016<br class="">; resP@gsnPanelYWhiteSpacePercent = 5. ; increase spacing along Y-axis between panel plots<br class=""> resP@gsnPanelYWhiteSpacePercent = 2;;increases the figure size ; increase spacing along Y-axis between panel plots<br class="">res@lbLabelFontHeightF = 0.018<br class="">resP@lbLabelFont = "22"<br class="">; resP@lbTitleString = ""+tic+""<br class=""> resP@cnLinesOn = False ; turn off contour lines<br class=""> resP@lbLabelFont = "helvetica-bold" ; add common colorbar<br class=""> resP@lbTitleFont = "helvetica-bold" ; add common colorbar<br class=""> resP@lbTitleFontHeightF= .015 ; make title smaller<br class=""> resP@cnLineLabelsOn = False<br class=""> resP@txFontHeightF = 0.03<br class=""> resP@txFont = "helvetica-bold"<br class=""><br class="">gsn_panel(wks,plot,(/1,2/),resP)<br class="">;---This will maximize the size of all the paneled stuff.<br class="">;end do<br class=""><br class="">end </div></div>
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