REST1.8PRE去线性漂移和滤波的问题

老师好:
我采用DPARSF BASIC2.2计算ALFF,出现下面错误:
Warning: Invalid escape sequence appears in format string. See help sprintf for valid escape sequences.
> In rest_detrend at 24
In DPARSF_run at 992
In DPARSF>pushbuttonRun_Callback at 976
In gui_mainfcn at 96
In DPARSF at 43

Removing the linear trend: E: