How COMBINE Works

For a peak with given frequency and significance, all possible combinations of previously detected genuine frequencies $f_{k}$, $k=1,...,K$ are computed. $K$ is the maximum number of frequencies in a linear combination. The resulting frequency for a linear combination is

$$f^{\prime}:=\sum_{k=1}^{K}c_{k}f_{k}$$ (35)

and shall be compared to a frequency $f$ in the input file.