[R] logical 'or' on list of vectors

[Chuck Cleland]

Tim Bergsma wrote:
> Suppose I have a list of logicals, such as returned by lapply:
> 
> Theoph$Dose[1] <- NA
> Theoph$Time[2] <- NA
> Theoph$conc[3] <- NA
> lapply(Theoph,is.na)
> 
> Is there a direct way to execute logical "or" across all vectors?  The 
> following gives the desired result, but seems unnecessarily complex.
> 
> as.logical(apply(do.call("rbind",lapply(Theoph,is.na)),2,"sum"))

  Is this what you want?

apply(is.na(Theoph), 1, any)

> Regards,
> 
> Tim
> 
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-- 
Chuck Cleland, Ph.D.
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