With data derived from the gels and based on the molecular weight of the fragments, a binary matrix was made, which was coded with digit 1 for present bands and 0 for absent bands.
Con los datos derivados de los geles y con base en el peso molecular de los fragmentos, se elaboró una matriz binaria en la que se codificó con el dígito 1 las bandas presentes y con 0 a las ausentes.