[ncl-talk] The result of the conditional expression yields a missing value (mjoclivar_15)

reza tisa rezatisa1 at gmail.com
Mon Dec 30 20:32:28 MST 2019 

This is what i got before line 110, i got 100 missing data on pc1 and pc2
(day 265-365)
any advice for this?

*PrintVarSummary(pc1) & printVarSummary(pc2) :*
Variable: pc1
Type: float
Total Size: 1460 bytes
            365 values
Number of Dimensions: 1
Dimensions and sizes: [time | 365]
Coordinates:
            time: [1910952..1919688]
Number Of Attributes: 5
  matrix : covariance
  ts_mean : ( 4.944145e-09, -3.424131e-09 )
  long_name : PC1
  info : PC1/stddev(PC1)
  _FillValue : 32766

Variable: pc2
Type: float
Total Size: 1460 bytes
            365 values
Number of Dimensions: 1
Dimensions and sizes: [time | 365]
Coordinates:
            time: [1910952..1919688]
Number Of Attributes: 5
  matrix : covariance
  ts_mean : ( 4.944145e-09, -3.424131e-09 )
  long_name : PC2
  info : PC2/stddev(PC2)
  _FillValue : 32766



*print(pc1) & print(pc2):*

Variable: pc1
Type: float
Total Size: 1460 bytes
            365 values
Number of Dimensions: 1
Dimensions and sizes: [time | 365]
Coordinates:
            time: [1910952..1919688]
Number Of Attributes: 5
  matrix : covariance
  ts_mean : ( 4.944145e-09, -3.424131e-09 )
  long_name : PC1
  info : PC1/stddev(PC1)
  _FillValue : 32766
(0) 0.6806232
(1) 0.8251321
(2) 0.9573668
(3) 1.082248
(4) 1.204796
........................
(263) -0.2053133
(264) -0.3058788


*(265) 32766(266) 32766*

*................ (same 32766 fillValue)*
*................*


*(363) 32766(364) 32766*

Variable: pc2
Type: float
Total Size: 1460 bytes
            365 values
Number of Dimensions: 1
Dimensions and sizes: [time | 365]
Coordinates:
            time: [1910952..1919688]
Number Of Attributes: 5
  matrix : covariance
  ts_mean : ( 4.944145e-09, -3.424131e-09 )
  long_name : PC2
  info : PC2/stddev(PC2)
  _FillValue : 32766
(0) -2.171702
(1) -2.205069
(2) -2.23731
(3) -2.264152
(4) -2.279648
..................
..................
(261) 0.4560925
(262) 0.4993998
(263) 0.5322841
(264) 0.5507534


*(265) 32766(266) 32766......................*

*...................... (same 32766 fillValue)*

*(363) 32766(364) 32766*

*printMinMax :*
ncl 125>     printMinMax(pc1) ;Show the min and max values of a whole array
*result :*
fatal:syntax error: procedure printMinMax expects 2 arguments, got 1
fatal:error at line 125
ncl 126> printMinMax(pc2) ;Show the min and max values of a whole array
fatal:syntax error: procedure printMinMax expects 2 arguments, got 1
fatal:error at line 126

*print ("Missing value count = " + num (ismissing (X)) :*
ncl 323>     print ("Missing value count = " + num (ismissing (pc1))
*result*
(0) Missing value count = 100

ncl 323>     print ("Missing value count = " + num (ismissing (pc2))
*result*
(0) Missing value count = 100


Pada tanggal Sel, 31 Des 2019 pukul 07.34 Dave Allured - NOAA Affiliate <
dave.allured at noaa.gov> menulis:

> This error is not immediately obvious.  In general, when you get a
> mysterious error from an NCL statement, you should manually check each one
> of the inputs, immediately before the statement is executed.  The following
> debugging statements are most useful for this:
>
>     print -- Show all dimensions, attributes, and data values of the named
> variable or immediate expression
>     printVarSummary -- Show all dimensions and attributes, but not the
> data values
>     printMinMax -- Show the min and max values of a whole array
>     print ("Missing value count = " + num (ismissing (X))) -- Show the
> number of missing values of X
>
> Please use these methods to check all of the individual inputs to line
> 110, and make sure everything looks reasonable.  Note that this line draws
> one of the line segments on your expected plot, so it needs two valid
> coordinate pairs for input.  If you still need to report back to the
> mailing list, please report only things that you find invalid or
> mysterious.  Thanks.
>
>
> On Mon, Dec 30, 2019 at 4:53 AM reza tisa via ncl-talk <ncl-talk at ucar.edu>
> wrote:
>
>> Hello all NCL user, i am running mjoclivar_15 and got this error messages:
>> Error Message :
>> *fatal:The result of the conditional expression yields a missing value.
>> NCL can not determine branch, see ismissing function*
>>
>>
>>
>>
>>
>>
>> *fatal:["Execute.c":8637]:Execute: Error occurred at or near line 3836 in
>> file
>> $NCARG_ROOT/lib/ncarg/nclscripts/csm/gsn_code.nclfatal:["Execute.c":8637]:Execute:
>> Error occurred at or near line 4143 in file
>> $NCARG_ROOT/lib/ncarg/nclscripts/csm/gsn_code.nclfatal:["Execute.c":8635]:Execute:
>> Error occurred at or near line 110*
>> *This is my data:*
>> MJO_PC_INDEX.nc (i got from running mjoclivar_14):
>> https://drive.google.com/open?id=1pr6wTdRXE0AWaPbh-Q8wWHca8NZLTLQw
>> My mjoclivar_15 script:
>> https://drive.google.com/open?id=1uvljzKOnCZt2vqso1fPPxLqCD1R9FBq2
>>
>> *Error line:*
>> ................
>> ncl 106> gsn_define_colormap(wks,"radar_1")
>> ncl 107>       end if
>> ncl 108>                                                     ; color
>> changes w month
>> ncl 109>       plLine at gsLineColor = colMonth(imon(nt)-1)     ; -1 is cuz
>> NCL is 0-based
>> *ncl 110>       plot@$unique_string("dum")$ = gsn_add_polyline(wks, plot,
>> (/xBegin,pc1(nt)/), (/yBegin,pc2(nt)/), plLine)*
>> ncl 111>
>> ncl 112>       if (label_opt.eq.0) then
>> ncl 113>
>> ...................
>>
>> *printVarSummary from MJO_PC_INDEX.nc :*
>> ncl 6> printVarSummary(T) *;PC1*
>> Variable: T
>> Type: float
>> Total Size: 5844 bytes
>>             1461 values
>> Number of Dimensions: 1
>> Dimensions and sizes: [time | 1461]
>> Coordinates:
>>             time: [1884648..1919688]
>> Number Of Attributes: 5
>>   info : PC1/stddev(PC1)
>>   long_name : PC1
>>   ts_mean : ( 4.944145e-09, -3.424131e-09 )
>>   matrix : covariance
>>   _FillValue : 32766
>>
>> ncl 8> printVarSummary(T2) *;PC2*
>> Variable: T2
>> Type: float
>> Total Size: 5844 bytes
>>             1461 values
>> Number of Dimensions: 1
>> Dimensions and sizes: [time | 1461]
>> Coordinates:
>>             time: [1884648..1919688]
>> Number Of Attributes: 5
>>   info : PC2/stddev(PC2)
>>   long_name : PC2
>>   ts_mean : ( 4.944145e-09, -3.424131e-09 )
>>   matrix : covariance
>>   _FillValue : 32766
>>
>> ncl 11> printVarSummary(T2)  *;MJO_INDEX*
>> Variable: T2
>> Type: float
>> Total Size: 5844 bytes
>>             1461 values
>> Number of Dimensions: 1
>> Dimensions and sizes: [time | 1461]
>> Coordinates:
>>             time: [1884648..1919688]
>> Number Of Attributes: 5
>>   long_name : MJO PC INDEX
>>   info : (PC1^2 + PC2^2)
>>   ts_mean : ( 4.944145e-09, -3.424131e-09 )
>>   matrix : covariance
>>   _FillValue : 32766
>>
>> ncl 13> printVarSummary(T3)   *;time  *
>> Variable: T3
>> Type: double
>> Total Size: 11688 bytes
>>             1461 values
>> Number of Dimensions: 1
>> Dimensions and sizes: [time | 1461]
>> Coordinates:
>>             time: [1884648..1919688]
>> Number Of Attributes: 6
>>   units : hours since 1800-01-01 00:00:0.0
>>   long_name : Time
>>   actual_range : ( 1528872, 1919688 )
>>   delta_t : 0000-00-01 00:00:00
>>   standard_name : time
>>   axis : T
>>
>> Thanks for anybody could help and giving solution for this error
>>
>
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