[R] How to deal with this :" object ' obs' not found.

[P Ehlers]

Try

  sortedx1=ttx1[order(-ttx1$obs),]

(and ask yourself where obs lives)

 -Peter Ehlers

Hyo Lee wrote:
> Hi guys,
> I need your help.
> I'm trying to sort the data by the variable "obs".
> This is how I tried to sort the data below.
>
> The problem is, I have a variable name "obs"; this is.. a counter variable.
> something like _n_ in SAS.
> I do not know why it is not working.
> I even tried a similar example in UCLA webpage:
> http://www.ats.ucla.edu/stat/R/faq/sort.htm  :it also does not seem to work.
> "*sort1.hsb2 <- hsb2[order(read) , ]"*
> Do you have any idea how to deal with this problem??  Thank you so much.
> -Hyo
>
>   
>> colnames(ttx1)
>>     
>  [1] "longitude 1"  "longitude 2"  "longitude 3"  "longitude 4"  "longitude
> 5"
>  [6] "longitude 6"  "longitude 7"  "longitude 8"  "longitude 9"  "longitude
> 10"
> [11] "longitude 11" "longitude 12" "longitude 13" "longitude 14" "longitude
> 15"
> [16] "longitude 16" "longitude 17" "longitude 18" "longitude 19" "longitude
> 20"
> [21] "longitude 21" "longitude 22" "longitude 23" "longitude 24" "longitude
> 25"
> [26] "longitude 26" "longitude 27" "longitude 28" "longitude 29" "longitude
> 30"
> [31] "longitude 31" "longitude 32" "longitude 33" "longitude 34" "longitude
> 35"
> [36] "longitude 36" "longitude 37" "longitude 38" "longitude 39" "longitude
> 40"
> [41] "longitude 41" "longitude 42" "longitude 43" "longitude 44" "longitude
> 45"
> [46] "longitude 46" "longitude 47" "longitude 48" "longitude 49" "longitude
> 50"
> [51] "longitude 51" "longitude 52" "longitude 53" "longitude 54" "longitude
> 55"
> [56] "longitude 56" "longitude 57" "longitude 58" "longitude 59" "longitude
> 60"
> [61] "longitude 61" "longitude 62" "longitude 63" "longitude 64" "longitude
> 65"
> [66] "longitude 66" "longitude 67" "longitude 68" "longitude 69" "longitude
> 70"
> [71] "longitude 71" "longitude 72" "obs"
>   
>> sortedx1=ttx1[order(-obs),]
>>     
> Error in order(-obs) : object 'obs' not found
>
> 	[[alternative HTML version deleted]]
>
> ______________________________________________
> R-help at 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.
>
>
>