读入一段数据后，计算有效信号的初至、持时及能量等属性，并作出事件属性判断。-Data into a period of time after the initial calculation of the effective signal to hold the time and energy, such as attributes, and attribute the incident to determine.

采用matab语言计算地震动记录，得到11种在地震工程中需要运用的参数，适用于日本K-net和Kik-net的数据，也适用于peer数据库的数据，只需要少量修改即可。(computing the ground motion parameters using the algorithm provided by litereatures , we can compute 11 parameters ,including PGA, PGV ,PGD,SA,SV,SD and so on.)