Hello,

Check the result of

> min(c(1,2,3,4,NA,6))

And read

> ?min

Hope this helps,
Pascal




2013/8/31 Casey Zhang <casey1000@gmail.com>

> Hi,
>
> I'm just starting to learn how to use R and I'm trying to create a
> histogram with 7 breaks. This is my code so far:
>
> dat=read.table("titanic.csv",header=TRUE,sep=",",na.string=".")
> age=dat$Age
> breaks=seq(min(age),max(age),length=7)
> hist(age,breaks,freq=FALSE)
>
> I don't know why, but on the fourth line it always gives this error:
>
> Error in if (from == to) rep.int(from, length.out) else as.vector(c(from,
>  :
>   missing value where TRUE/FALSE needed
>
> What am I doing wrong? I know the data itself does have a lot of NA
> values for age, would this be the problem?
>
>
> Thanks,
>
> CZ
>
>         [[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.
>

	[[alternative HTML version deleted]]

