Maybe it will help if I create some fake data to illustrate what I think
you want:
set.seed(25)
tmp <- data.frame(origin=sample( letters[1:3], 25, replace=TRUE),
schd= sample( 1:5, 25, replace=TRUE)
)
tmp$schd[ c(5,7,18,22) ] <- NA
print(tmp)
table( tmp$origin, is.na(tmp$schd))
FALSE TRUE
a 9 1
b 6 2
c 6 1
## a little fancier
table( tmp$origin, ifelse(is.na(tmp$schd),'missing','available'))
available missing
a 9 1
b 6 2
c 6 1
For example, for schedule "b" there are 6 instances for which the sched
time has been entered and 2 where it has not.
In this example, the table() function is working correctly.
I don't think anyone understands what is wrong with the output you are
getting.
--
Don MacQueen
Lawrence Livermore National Laboratory
7000 East Ave., L-627
Livermore, CA 94550
925-423-1062
On 6/11/15, 11:27 PM, "Shivi82" <shivibha...@ymail.com> wrote:
>Hi Petr,
>
>Probably i did not explain my scenario clearly.
> table(test$ORIGIN_NAME,is.na(test$SCH_TIME)) is the syntax with which i
>am
>trying to find per destination wise how many instances are there where
>system failed to enter the scheduled delivery time & there are multiple
>cases of these. I am expecting an output where TRUE and FALSE will give
>number of observations either missing or non-missing.
>
>ORIGIN ORIGIN_NAME DESTINATION DESTINATION_NM RPS_NO
>DLI11 DELHI-11 NDA50 NOIDA-50
>
>1350760
>NDA50 NOIDA-50 DLI11 DELHI-11
>
>1352692
>
>
>SCH_TIME ACTUAL_DEP_DATE ACTUAL_DEP_TIME WAYBILLS TOTAL_PKG ACTUAL_WT
>CHG_WT
>6:00 13/03/2015 6:30 -
>
>0 0 0
>21:30 15/03/2015 13:37 28
>
>256 3419 3730
>
>
>Hopefully i am able to make my self now clear. Thank you.
>
>
>
>
>
>
>
>--
>View this message in context:
>http://r.789695.n4.nabble.com/Missing-Values-in-Table-Statement-tp4708534p
>4708537.html
>Sent from the R help mailing list archive at Nabble.com.
>
>______________________________________________
>R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see
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>PLEASE do read the posting guide
>http://www.R-project.org/posting-guide.html
>and provide commented, minimal, self-contained, reproducible code.
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