rowmatch: Row Matching
In arappold/docopulae: Optimal Designs for Copula Models

Description Usage Arguments Details Value See Also Examples

rowmatch returns a vector of the positions of (first) matches of the rows of its first argument in the rows of its second.

1	rowmatch(x, table, nomatch = NA_integer_)

`x`	a row matrix of doubles, the rows to be matched.
`table`	a row matrix of doubles, the rows to be matched against.
`nomatch`	the value to be returned in the case when no match is found. Note that it is coerced to `integer`.

rowmatch uses compiled C-code.

rowmatch returns an integer vector giving the position of the matching row in table for each row in x. And nomatch if there is no matching row.

match

a = as.matrix(expand.grid(as.double(2:3), as.double(3:6)))
a = a[sample(nrow(a)),]
a

b = as.matrix(expand.grid(as.double(3:4), as.double(2:5)))
b = b[sample(nrow(b)),]
b

i = rowmatch(a, b)
i
b[na.omit(i),] # matching rows
a[is.na(i),] # non matching rows