Method for quantitatively evaluating crab aggressiveness based on factor analysis and multiple linear regression

The invention discloses a method for quantitatively evaluating crab aggressiveness based on factor analysis and multiple linear regression, which comprises the following steps: recording and quantifying aggressiveness behaviors of crabs through a mirror image experiment, calculating aggressiveness scores of the crabs by adopting factor analysis, and taking the aggressiveness scores as output variables of a quantitative evaluation model; multiple pairing fight experiments are carried out, and fight behaviors of the crabs are quantified; non-attack indexes linearly related to the attack scores are screened out to serve as input variables of the quantitative evaluation model, the quantitative evaluation model of the attack of the crabs is constructed and verified through multiple linear regression analysis, and the model is applied to quantitative evaluation of the attack of the crabs. According to the method, the aggressiveness score is introduced for quantitative evaluation of the aggressiveness of the crabs f