[R] NAs

[Pesl Thomas]

Dear R-Friends,

i encountered the following problem:

i wanted to apply(x,2,mean), where x is an array (3720 x 90), every single
column has a certain number of NAs, so the output of apply is a vector of
NAs. 
Is there a possibility (other than reducing every single column with
na.omit()) to deal with this.

Thanks,
    Thomas
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