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Take the following example from CRAN'S dplyr introduction: 

select(flights, tail_num = tailnum)
 #> # A tibble: 336,776 x 1
 #>   tail_num
 #>      <chr>
 #> 1   N14228
 #> 2   N24211
 #> 3   N619AA
 #> 4   N804JB
 #> ... with 336,772 more rows

Why are these row ids being returned and is there anyway to remove them?

HubertL
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Joseph
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1 Answers1

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These ids are only lines number that are actually not stored. They are only here for display purposes and they are not real Ids

Loay Ashmawy
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  • Understood. But is there anyway to remove them – Joseph Mar 14 '17 at 19:24
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    @Joseph Well, if you just want the vector... `select(flights, tail_num = tailnum) %>% c`. Otherwise maybe you want http://stackoverflow.com/a/36706785/ – Frank Mar 14 '17 at 19:30
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    You should do what @Frank said to use the vector. Otherwise these values can't be removed because they don't exist anywhere in the memory, in other words there are no variables representing these values! – Loay Ashmawy Mar 14 '17 at 19:39
  • Won't these come up in shiny dashboard? – Joseph Mar 14 '17 at 20:00
  • I don't really know I've never used it. If you really want to print your elements without the line number you can do a **for loop** and print each element individually. – Loay Ashmawy Mar 15 '17 at 09:02