The user provides two files.
The landmark key file (e.g. dissectedkeyfile.csv) consists of three columns: the starting landmark (an integer, e.g. 1), the ending landmark (e.g. 8), and a description of the measurement (e.g., gyneocium width).
The tpsDig file (e.g. dissectedLMsfile.tps) is a standard tpsDig file with landmarks and scale factors. Consult the tpsDig documentation for information on scale factors.
The notebook calculates euclidean distance measures for each of the landmark pairs in the keyfile list, then scales them by multiplying by the scale factor.