vierwer错误

我用zReHo,zfALFF做完单样本t检验,用Rest的Viewer看时,没办法调节p值,出现错误
??? Undefined function or method 'tcdf' for input arguments of
type 'double'.

Error in ==> rest_sliceviewer>ThrdtoP at 4910
    AConfig.Overlay.ValueP=2*(1-tcdf(Thrd,AConfig.Df.Ttest));
Error in ==> rest_sliceviewer>SetThrdAbsValue at 2988
        Pvalue=ThrdtoP(Result,AConfig);
Error in ==> rest_sliceviewer at 623
   REST_SliceViewer_Cfg.Config(theCardinal).Overlay.ValueThrdAbsolute
            =SetThrdAbsValue(REST_SliceViewer_Cfg.Config(theCardinal));
??? Error while evaluating uicontrol Callback
不知是什么原因,请老师指教,万分感谢!