The purpose of this study is to propose a method in order to understand both characteristics of skyline and its impression of comfort by fixed quantity such as 'value of fluctuation' and to examine its effectiveness. This paper makes clear the usefulness of adopting fluctuations as the index. Through the analysis with fluctuations, it was found out that skyline tend to have 1/f fluctuations. And we had a survey on correlation between fluctuations and impression. The results show the possibility to grasp not only the characteristics of skylne figures but also its impression of comfort by fluctuations.
