Hi PIKAL, The error seems to be starnge to me because i access the indices of NAs. Indices can't be non-applicable. This is the output of indecs having the NA in my dataset. my dataset is very big that's why I did not provide it.
> indicNAs <- which(data$Rain %in% NA) > indicNAs [1] 426 792 1158 1890 2256 2622 3354 3720 4086 4818 5184 5550 6282 6648 7014 7746 8112 [18] 8478 9210 9576 9942 10674 11040 11406 12138 12504 12870 13602 13968 14334 15066 15432 15798 16530 [35] 16896 17262 17994 18360 18726 19458 19824 20190 Regards, Frederic. Frederic Ntirenganya Maseno University, African Maths Initiative, Kenya. Mobile:(+254)718492836 Email: fr...@aims.ac.za https://sites.google.com/a/aims.ac.za/fredo/ On Tue, Nov 25, 2014 at 3:51 PM, Michael Dewey <i...@aghmed.fsnet.co.uk> wrote: > You do not tell us what you are trying to do but I think there is > something wrong in the logic of your thinking as on the one hand you are > selecting just precisely those elements of data$Rain which are NA and then > testing whether any of them equals 60. > > > > On 25/11/2014 12:19, Frederic Ntirenganya wrote: > >> Dear All, >> >> I am getting this error and don't know why it comes. can you please help ? >> >> Error in if (data$Rain[i_NA] == 60) { : >> missing value where TRUE/FALSE needed >> >> The loop is : >> >> indicNAs <- which(data$Rain %in% NA) >> ind_nonleap = c() # NAs due to non leap years >> ind_nonrecord = c() # NAs due to non recording values >> for (i_NA in indicNAs ){ >> if(data$Rain[i_NA] == 60){ >> ind_nonleap <- append(ind_nonleap,i_NA) >> } >> else { >> ind_nonrecord<-append(ind_nonrecord,i_NA) >> } >> #cat(ind_nonrecord) >> #cat( ind_nonleap) >> } >> ind_nonleap >> >> Regards, >> Frederic. >> >> Frederic Ntirenganya >> Maseno University, >> African Maths Initiative, >> Kenya. >> Mobile:(+254)718492836 >> Email: fr...@aims.ac.za >> https://sites.google.com/a/aims.ac.za/fredo/ >> >> [[alternative HTML version deleted]] >> >> ______________________________________________ >> R-help@r-project.org mailing list >> https://stat.ethz.ch/mailman/listinfo/r-help >> PLEASE do read the posting guide http://www.R-project.org/ >> posting-guide.html >> and provide commented, minimal, self-contained, reproducible code. >> >> >> ----- >> No virus found in this message. >> Checked by AVG - www.avg.com >> Version: 2015.0.5577 / Virus Database: 4223/8627 - Release Date: 11/25/14 >> >> >> > -- > Michael > http://www.dewey.myzen.co.uk > [[alternative HTML version deleted]] ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
