R OR comparing two booleans, I want F | NA to return F -

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i have situation have 2 vectors 1's, 0's , na's. want take highest non-na value @ each index.

eg. take these 2 vectors v1 , v2:

v1 = c(1,0,1,0,0,1,na,na,0,1) v2 = c(1,na,1,0,1,na,1,na,0,1)

you convert them boolean , v1 | v2 there following problem:

1 | 0 = t 0 | 1 = t 1 | 1 = t 0 | 0 = f na | na = na <--- 1 | na = t <-- 0 | na = na <--- want return f

there's solution using apply , max, problem max(c(na,na), na.rm=t) returns -inf.

any way in 1 liner?

since you're comparing 2 numeric vectors doesn't make sense me convert them logical vectors determine pairwise largest values. pmax returns element-wise maximum of vectors , comes na.rm option handle missing values:

pmax(v1, v2, na.rm=true) # [1]  1  0  1  0  1  1  1 na  0  1

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