[R] how to remove rows of NA

[Peter Dalgaard BSA]

bernd.ebersberger at gmx.de writes:

>  dear all,
>  
>  i have a dataset that contains observations (rows) only containing missing
>  values.
>  
>  how can i remove those rows
>  i want to keep the rows where there is at least one non-missing value.
>  
>  thanks for your help.

Something like

mydata[!apply(is.na(mydata),1,all),]
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   O__  ---- Peter Dalgaard             Blegdamsvej 3  
  c/ /'_ --- Dept. of Biostatistics     2200 Cph. N   
 (*) \(*) -- University of Copenhagen   Denmark      Ph: (+45) 35327918
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