计算肌电信号积分肌电值，均方根值，中值频率，平均功率频率,IEMG EMG calculated value, RMS value, median frequency, mean power frequency

从磁盘中的txt文件中读取数据，并对数据进行均方根计算，并进行粗大误差剔除-Txt file from the disk to read data, and calculated the root mean square data, and the gross error removed