problem with yyyyddd_to_yyyymmdd

Dear all,

Happy New Year!

I had a problem using the function 'yyyyddd_to_yyyymmdd'.
I read a ascii file of radiation data.
For every year, it works fine from Jan 1st to 8th, but fails on 9th:
==============================================================
fatal:The result of the conditional expression yields a missing value. NCL
can not determine branch, see ismissing function

fatal:["Execute.c":8128]:Execute: Error occurred at or near line 4670 in
file $NCARG_ROOT/lib/ncarg/nclscripts/csm/contributed.ncl

fatal:["Execute.c":8128]:Execute: Error occurred at or near line 30 in file
yyyyddd_to_yyyymmdd_check.ncl
===============================================================

The ascii files look normal. They are downloaded from GC-NET.
I print all the inputs. They look fine too.
I tried to debug contributed.ncl. There are no missing values in the
conditional statement, where the script breaks.
I have workarounds but really want to know why this happens.

The following is my data and script.
I attached them and put them on to 'ftp.cgd.ucar.edu:/incoming' as well.
NCL version: 6.1.2
System: Linux grele 3.5.0-44-generic #67~precise1-Ubuntu SMP Wed Nov 13
16:16:57 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux

Thank you very much!

DATA (test.txt)
=================================================
Data avaiable from 1996 1.0000 to 2013 123.5000
1 Station Number A 01 .. 18
2 Year B 1995 - 1999
3 Julian Decimal Time C 0.0000 - 365.9583
4 SW_down [W m-2]
5 SW_up [W m-2]
6 Net Radiation F [W m-2]
7 Albedo
8 Zenith Angle [deg]

1 2011 8.7500 1.20 0.58 -33.12 0.85 95.97
1 2011 8.7917 0.20 0.14 -31.44 0.85 99.50
1 2011 8.8333 0.40 0.07 -30.40 0.85 103.83
1 2011 8.8750 0.20 0.00 -30.72 0.85 108.72
1 2011 8.9167 0.20 0.00 -31.84 0.85 113.91
1 2011 8.9583 0.20 0.00 -31.84 0.85 119.07
1 2011 9.0000 0.20 0.00 -32.80 0.85 123.91
1 2011 9.0417 0.40 0.00 -33.04 0.85 128.02
1 2011 9.0833 0.20 0.00 -31.12 0.85 131.00
1 2011 9.1250 0.20 0.07 -31.60 0.85 132.51
1 2011 9.1667 0.20 0.07 -32.48 0.85 132.34
1 2011 9.2083 0.20 0.14 -30.88 0.85 130.51
1 2011 9.2500 0.20 0.00 -32.24 0.85 127.26
1 2011 9.2917 0.20 0.00 -32.96 0.85 122.97
1 2011 9.3333 0.20 0.07 -29.36 0.85 118.04
1 2011 9.3750 0.20 0.00 -31.60 0.85 112.83
1 2011 9.4167 0.20 0.17 -31.36 0.85 107.66
1 2011 9.4583 0.20 0.14 -30.08 0.85 102.86
1 2011 9.5000 0.00 0.00 -24.08 0.85 98.65
1 2011 9.5417 0.00 0.00 -13.52 0.85 95.28
1 2011 9.5833 0.40 0.34 -28.24 0.85 92.96
1 2011 9.6250 2.00 1.70 -35.76 0.85 91.82
1 2011 9.6667 3.20 2.37 -36.96 0.85 91.93
1 2011 9.7083 2.20 1.58 -37.60 0.85 93.29
1 2011 9.7500 0.80 0.43 -36.72 0.85 95.81
1 2011 9.7917 0.40 0.07 -36.40 0.85 99.34
1 2011 9.8333 0.20 0.07 -37.20 0.85 103.67
1 2011 9.8750 0.20 0.07 -37.12 0.85 108.56
1 2011 9.9167 0.40 0.00 -37.12 0.85 113.74
1 2011 9.9583 0.40 0.00 -37.20 0.85 118.91
1 2011 10.0000 0.20 0.00 -37.52 0.85 123.74

==================================================

SCRIPT (yyyyddd_to_yyyymmdd_check.ncl)
==================================================
; Complied by Wang Wenshan 2014-01-03 Friday 14:10:49
load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/contributed.ncl"
load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/gsn_code.ncl"
load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/gsn_csm.ncl"
;*************************************************************
; txt --> nc
; GC-NET
; txt: each line:
; 0 1 2 3 4 5 6 7
; stn year day SW-down SW-up net albedo zenith
; nc: 16stn * 91day * 24 hr, 5 var
;************************************************************
begin
; read in txt
;------------------------------------------------------------
fn = "test.txt"

ncol = numAsciiCol(fn)
opt = 10

dd = readAsciiTable(fn, ncol, "float", opt)
printVarSummary(dd)
dim_dd = dimsizes(dd)
nrow = dim_dd(0)

do j = 0, nrow - 1 ; loop: rows
  print(dd(j,0)+" "+dd(j,1)+" "+dd(j,2)+" "+dd(j,3)+" "+dd(j,4)+"
"+dd(j,5)+" "+dd(j,6)+" "+dd(j,7))
  print(sprinti("%0.3i",toint(dd(j,2))))
  print(""+dd(j,1)+sprinti("%0.3i",toint(dd(j,2))))

print(""+yyyyddd_to_yyyymmdd(tointeger(dd(j,1)+sprinti("%0.3i",toint(dd(j,2))))))
  print("--------------")
end do

print("done!")
end

Best,
Wenshan
------------------------------------------------------------------------------
Graduate Student Researcher
Earth System Science
University of California, Irvine

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