[R] misbehavior with extract_numeric() from tidyr

[arnaud gaboury]

On Mon, Apr 20, 2015 at 9:10 AM, arnaud gaboury
<arnaud.gaboury at gmail.com> wrote:
> R 3.2.0 on Linux
> --------------------------------
>
> library(tidyr)
>
> playerStats <- c("LVL 10", "5,671,448 AP l6,000,000 AP", "Unique
> Portals Visited 1,038",
> "XM Collected 15,327,123 XM", "Hacks 14,268", "Resonators Deployed 11,126",
> "Links Created 1,744", "Control Fields Created 294", "Mind Units
> Captured 2,995,484 MUs",
> "Longest Link Ever Created 75 km", "Largest Control Field 189,731 MUs",
> "XM Recharged 3,006,364 XM", "Portals Captured 1,204", "Unique Portals
> Captured 486",
> "Resonators Destroyed 12,481", "Portals Neutralized 1,240", "Enemy
> Links Destroyed 3,169",
> "Enemy Control Fields Destroyed 1,394", "Distance Walked 230 km",
> "Max Time Portal Held 240 days", "Max Time Link Maintained 15 days",
> "Max Link Length x Days 276 km-days", "Max Time Field Held 4days",
> "Largest Field MUs x Days 83,226 MU-days")
>
> -----------------------------------------------------------------------------------------------
>  extract_numeric(playerStats)
>  [1]             10 56714486000000           1038       15327123
>    14268          11126           1744            294        2995484
> [10]             75         189731        3006364           1204
>      486          12481           1240           3169           1394
> [19]            230            240             15             NA
>        4             NA
>
> ------------------------------------------------------------------------------------------------
>  playerStats[c(22,24)]
> [1] "Max Link Length x Days 276 km-days"      "Largest Field MUs x
> Days 83,226 MU-days"
> --------------------------------------------------------------------------------------------
>
> I do not understand why these two vectors return NA when the function
> extract_numeric() works well for others,
>
> Any wrong settings in my env?

-------------------------------------------------------------------------
 as.numeric(gsub("[^0-9]", "",playerStats))
 [1]             10 56714486000000           1038       15327123
   14268          11126           1744            294        2995484
[10]             75         189731        3006364           1204
     486          12481           1240           3169           1394
[19]            230            240             15            276
       4          83226
--------------------------------------------------------------------

The above command does the job, but I still can not figure out why
extract_numeric() returns two NA

>
> Thank you for hints.
>
>
>
> --
>
> google.com/+arnaudgabourygabx



-- 

google.com/+arnaudgabourygabx