[R] vector and NA

[John Kane]

 ?is.na and its negative !is.na
Try something like this
xx  <- c(NA, NA, 1,  2,  3)
bb <- xx[!is.na(xx)]
bb

--- On Tue, 6/23/09, Alfredo Alessandrini <alfreale74 at gmail.com> wrote:

> From: Alfredo Alessandrini <alfreale74 at gmail.com>
> Subject: [R] vector and NA
> To: r-help at r-project.org
> Received: Tuesday, June 23, 2009, 5:41 AM
> Hi,
> 
> I've a vector like this:
> 
> ------------------------------------------------------
> > inc[,5]
>   [1]        NA   
>     NA        NA   
>     NA        NA   
>     NA        NA
>   [8]        NA   
>     NA        NA   
>     NA        NA   
>     NA        NA
>  [15]        NA     
>   NA        NA     
>   NA        NA     
>   NA        NA
>  [22]        NA     
>   NA        NA     
>   NA        NA     
>   NA        NA
>  [29]        NA     
>   NA        NA     
>   NA        NA     
>   NA        NA
>  [36]        NA     
>   NA        NA     
>   NA        NA     
>   NA        NA
>  [43]        NA     
>   NA        NA     
>   NA        NA     
>   NA        NA
>  [50]        NA     
>   NA        NA     
>   NA        NA     
>   NA        NA
>  [57]        NA     
>   NA        NA     
>   NA        NA     
>   NA        NA
>  [64]        NA     
>   NA        NA     
>   NA        NA     
>   NA        NA
>  [71]        NA     
>   NA        NA     
>   NA        NA     
>   NA        NA
>  [78]        NA     
>   NA        NA     
>   NA 13.095503 10.140119  7.989186
>  [85]  8.711888  7.201234 13.029250
> 14.430755  8.662832  8.810785 14.421302
>  [92]  7.614985  7.548091  9.843389
> 14.977402 20.875255  7.787543  2.005056
>  [99]  4.016916  3.601773  4.140390 
> 7.241999 13.280794 18.038902 18.762169
> [106]  4.280065  5.942021  6.292010
> 11.866446 19.450442 11.942362  6.224328
> [113]  3.176050  5.456117  2.733487 
> 3.992823 13.633171 19.514301 25.085256
> [120]  5.640089  5.890486 12.421150 18.821420
> 22.478664 11.503805  7.051254
> [127]  7.560921 12.000394 20.464875 16.147598
> 13.746290  9.416060 35.848221
> [134] 36.739481 23.516759  7.317599  3.928247
> 10.371437 11.202935 12.574649
> [141]  6.906980  9.191260  7.080267 
> 2.810271  5.494705 10.617141 14.578020
> [148] 10.981610  7.343975  2.179511 
> 2.726651 10.794842  9.872493 19.842701
> [155] 10.525064 16.134541 29.283385 18.352996 
> 9.216318  6.253805  2.704267
> [162]  4.274514  3.138237 12.296835 20.982433
> 13.001104  2.606328  3.333271
> [169]  5.514425  2.179244  5.381514 
> 6.848380  3.794428  5.114591  4.975830
> [176]  3.809948 10.131608 14.145913
> >
> -------------------------------------------
> 
> How can I extract a vector without the NA value?
> 
> 
> Regards,
> 
> Alfredo
> 
> ______________________________________________
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> 


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