This uses a greedy algorithm. It iterates over the unknown peaks in order of
decreasing height and assigns each unknown to the closest assigned peak within a
distance determined by the thresh parameter, as long as that peak wasn't already
assigned.
Usage
height_assign(assigned, unknown, thresh = 0.01)
Arguments
- assigned
two column matrix with assigned peak chemical shifts
- unknown
three column matrix with unknown peak chemical shifts and heights
- thresh
maximum distance (as a fraction of the two chemical shift ranges)
Value
An integer vector of length `nrow(assigned)` giving matched row
indices in `unknown` (or `NA` when unmatched). The `thresh` attribute stores
the effective distance thresholds in each dimension.