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--- Not sure what is happening on your end. Does your sounding containing missing values? --- The following works fine: [snip] printVarSummary(skewt_bkgd) printVarSummary(skewt_data) print("skewt_bkgd@Cape="+skewt_bkgd@Cape) print("skewt_data@Cape="+skewt_data@Cape) ---- Variable: skewt_bkgd Type: obj Total Size: 4 bytes 1 values Number of Dimensions: 1 Dimensions and sizes: [1] Coordinates: Number Of Attributes: 7 data : skewt_data coordArraysClass 87 dataspec : skewt_data xyDataSpecClass 109 Tlcl : 24.10441 Plcl : 927.8906 Shox : 2.998047 Pwat : 5.268123 Cape : 4455.835 Variable: skewt_data Type: obj Total Size: 4 bytes 1 values Number of Dimensions: 1 Dimensions and sizes: [1] Coordinates: Number Of Attributes: 7 data : skewt_data coordArraysClass 87 dataspec : skewt_data xyDataSpecClass 109 Tlcl : 24.10441 Plcl : 927.8906 Shox : 2.998047 Pwat : 5.268123 Cape : 4455.835 (0) skewt_bkgd@Cape=4455.84 (0) skewt_data@Cape=4455.84 On 2/27/12 2:47 PM, Yang Yang wrote: > Hi Dennis: > > Thank you for your help! > > I tried your suggestion. It still does not work. Please see my script below. The information after the run is: > > warning:Attempt to reference attribute (Cape) which is undefined > (0) -999 > warning:Attempt to reference attribute (Cape) which is undefined > (0) -999 > > Regards > Ed > > ;************************* > ;ncl script > ;************************** > wks = gsn_open_wks ("x11", "skewt_test_new") > > ; --- Create background skew-T; plot sounding --------------------- > > skewtOpts = True > skewtOpts@DrawColAreaFill = True ; default is False > skewtOpts@tiMainString = "Raob Data; No Winds" > > dataOpts = True ; no options > > dataOpts@PrintZ = True > skewt_bkgd = skewT_BackGround (wks, skewtOpts) > skewt_data = skewT_PlotData (wks, skewt_bkgd, pp,tt,tc,h \ > , wsp,dir, dataOpts) > draw (skewt_bkgd) > draw (skewt_data) > frame(wks) > > print(skewt_bkgd@Cape) > print(skewt_data@Cape) > > > --- On Tue, 2/28/12, Dennis Shea<shea@ucar.edu> wrote: > >> From: Dennis Shea<shea@ucar.edu> >> Subject: Re: Band-Pass Filter >> To: "Abhik Santra"<abhiksantra@tropmet.res.in> >> Cc: ncl-talk@ucar.edu >> Date: Tuesday, February 28, 2012, 12:49 AM >> "band_pass_latlon_time" was >> developed for one level. >> You will have to loop over each level. >> >> Good Luck >> >> On 2/27/12 12:33 AM, Abhik Santra wrote: >>> >>> Dear All, >>> >>> I use >> "band_pass_latlon_time" function with spd=1.0 and nwt=201 to >> keep all frequencies between 10 and 90 day for single level >> variable. Now, I want to do the same for >> multiple-level variables. But the "band_pass_latlon_time" >> function doesn't allow more than 1 level. Is there any other >> function to do that? Or should I do the same for each >> level separately? >>> >>> Regards, >> _______________________________________________ >> ncl-talk mailing list >> List instructions, subscriber options, unsubscribe: >> http://mailman.ucar.edu/mailman/listinfo/ncl-talk >> _______________________________________________ ncl-talk mailing list List instructions, subscriber options, unsubscribe: http://mailman.ucar.edu/mailman/listinfo/ncl-talkReceived on Mon Feb 27 15:26:48 2012
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