Why these two lines do not execute?

Dear all,

Does anyone please help me out of this problem? Thanks in advance.

These two lines do not execute with warnings follow.

" ii = ind((.not. (ismissing(visib_full))) .and. ((fog_full.eq.0) .and. (rain_full.eq.0) .and. (snow_full.eq.0) .and. (hail_full.eq.0)) .and.\ (visib_full.lt.10) .and. ((year_full.eq.Year .and. (month_full.eq.12)) .or. (year_full.eq.Year+1 .and. ((month_full.eq.1) .or.\
                         (month_full.eq.2)))))

                iii = ind((.not. (ismissing(visib_full))) .and. ((fog_full.eq.0) .and. (rain_full.eq.0) .and. (snow_full.eq.0) .and. (hail_full.eq.0)) .and.\ (visib_full.gt.10) .and. ((year_full.eq.Year .and. (month_full.eq.12)) .or. (year_full.eq.Year+1 .and. ((month_full.eq.1) .or.\
                         (month_full.eq.2)))))"

fatal:syntax error: line 169 in file 1973to2012_winter_non-fognon-prcpandvislt10_composite.ncl before or near )
                         (month_full.eq.2)))
-------------------------------------------^

fatal:syntax error: line 172 in file 1973to2012_winter_non-fognon-prcpandvislt10_composite.ncl before or near )
                         (month_full.eq.2)))
-------------------------------------------^

fatal:Syntax Error in block, block not executed
fatal:error at line 3160 in file 1973to2012_winter_non-fognon-prcpandvislt10_composite.ncl

What is wrong with my using of "/" here?

Thanks.

Wen.J.Qu
2013-09-09

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Received on Sun Sep 8 20:25:52 2013