Waveform data processing device and waveform data processing program

A non-transitory computer readable media recording a waveform data processing program operable on a computer capable of accessing a storage device for storing, together with data of an observed waveform, information on peaks existing the observed waveform previously extracted based on the data of the observed waveform obtained with a sample measurement device, information on a starting point and an ending point of a peak cluster consisting of a plurality of peaks close to one another present on the observed waveform, and information on a position of each peak included in the peak cluster and a positive/negative direction of the each peak, the waveform data processing program causing the computer to function as:

• baseline determination means for determining, based on the data of the observed waveform and the information on the peak and the peak cluster stored in the storage device, a shortest straight line or shortest line segments from the starting point of the peak cluster as a beginning point to the ending point of the peak cluster as a finishing point satisfying all following conditions, and determining the straight line or the line segments to be a baseline of the peak cluster:
• (1) in a section where positive peaks are contiguous, a baseline passes below the observed waveform, becoming a straight line or line segments convex downward;
• (2) in a section where negative peaks are contiguous, a baseline passes above the observed waveform, becoming a straight line or line segments convex upward;
• (3) in a section where positive and negative peaks are contiguous, a baseline may or may not intersect with the observed waveform.