[Rd] Typeof for character vector in dataframe returns integer

Jeff Johnson mrjefftoyou at gmail.com
Wed Apr 2 02:51:28 CEST 2014


Perhaps because indexes start at 0?

Sent from my iPhone

> On Apr 1, 2014, at 5:46 PM, Sandip Nandi <sannandi at umail.iu.edu> wrote:
> 
> Hi ,
> 
> I want to know is this behavior expected and why is that ? Need some help
> 
> gender <- c("F", "M", "M", "F", "F", "M", "F", "F")
>> age    <- c(23, 25, 27, 29, 31, 33, 35, 37)
>> df<- data.frame(gender,age)
>> typeof(df[[1]])
> [1] "integer"   >>>>>>>>>>>>>  Why is this integer . *Should not it be
> character ?*
>> typeof(df[[2]])
> [1] "double"
> 
>> typeof(gender)
> [1] "character"
>> typeof(age)
> [1] "double"
> 
> In my code i am trying to do some thing based on typeof and the type for
> character column is strange.
> 
> Thanks,
> Sandip
> 
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> 
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