Comparative analysis on the weight assigning methods of land evaluation index

Taking the rural residential land consolidation potential evaluation of Zhuanglang County as the study case,six weight assigning methods,entropy method,maximizing deviation method,variation coefficient method,mean variance decision method,factor analysis method and the gray correlation method were comparatively analyzed.The results showed as follows:factor analysis method and grey correlation method were not suitable for index weight determining,because of their weak sensitivity in distinguishing indexes difference.Entropy method,maximizing deviation method,variation coefficient method and the mean variance decision method showed different index weight determining results,since each method using the different index to measure discrete degree.Among these method,entropy weight method was the most sensitive method,so it was determined as the best method for weight assigning of land evaluation index.