Hello,
I am having trouble dealing with NA values in if statements such as:
i<-1
for(i in 1:length(dat$wdir)){
if (dat$wspd[i]==0){
dat$wdir[i]<-0
}
}
I get the following error due to the presence of NS values in the data:
Error in if (dat$wspd[i] == 0) { : missing value where TRUE/FALSE needed
Sorry if this is an old question but I was unable to resolve this from the
info on na.action etc. or old archives.
Thank you for any suggestions,
Vera Lindsay
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