8FUNCTIONS: ipel - CYANA function

Synopsis: ipel(<integer>,<integer>) = <integer>

This function returns the ordinal number (number of protons, e.g.,
1 for hydrogen, 6 for carbon, 7 for nitrogen) of the nucleus that
was detected for the k-th dimension of the n-th peak list, where n
and and k denote, respectively, the first and the second argument of
the function.
