OPERATION ANALYSIS DEVICE AND OPERATION ANALYSIS METHOD

A motion analysis apparatus is provided that enables a contribution degree that suits analysis conditions to be set easily. A motion analysis apparatus (300) is provided with a motion data input section (310) that receives learning data as input, a motion feature extraction section (320) that extracts a motion feature amount from learning data, a principal component analysis section (330) that performs principal component analysis using a motion feature amount on part of the learning data, and learns a subspace, a learning data distance calculation section (340) that calculates a distance between a learning data motion feature amount and a subspace, and a contribution degree determination section (350) that determines the suitability of a contribution degree used in principal component analysis, from a distance calculated from learning data that is used in subspace learning and a distance calculated from learning data that is not used in subspace learning.