用rest的two sample t test时的Warning

老师，您好。
    

Warning: There are too few time points.(i.e. The number of the time points is less than 10)

我做了某个ROI的voxel-vised的功能连接，得到zFCMAP，我对2组人的zFCMAP进行two-sample test，然后就出现了以上的Warning. zFCMAP好像不存在时间点这个概念吧。在算功能连接时，不是所有的时间序列的值都平均成一个值了么。

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    Image Files in Group 1:
    zFCMap_lFFA_AD01_detrend_filtered_Covheadremoved.img
    zFCMap_lFFA_AD02_detrend_filtered_Covheadremoved.img
    zFCMap_lFFA_AD03_detrend_filtered_Covheadremoved.img
    zFCMap_lFFA_AD04_detrend_filtered_Covheadremoved.img
    zFCMap_lFFA_AD05_detrend_filtered_Covheadremoved.img
    zFCMap_lFFA_AD06_detrend_filtered_Covheadremoved.img
    zFCMap_lFFA_AD07_detrend_filtered_Covheadremoved.img
    zFCMap_lFFA_AD08_detrend_filtered_Covheadremoved.img
    zFCMap_lFFA_AD09_detrend_filtered_Covheadremoved.img
    zFCMap_lFFA_AD10_detrend_filtered_Covheadremoved.img
    zFCMap_lFFA_AD11_detrend_filtered_Covheadremoved.img

     Read 3D EPI functional images: "G:\cirongliu\ChildData\Me\Result_Me_Voxelvise_NoGlobal_Headmoved\lFFA\AD"...

    Image Files in Group 1:
    zFCMap_lFFA_AD01_detrend_filtered_Covheadremoved.img
    zFCMap_lFFA_AD02_detrend_filtered_Covheadremoved.img
    zFCMap_lFFA_AD03_detrend_filtered_Covheadremoved.img
    zFCMap_lFFA_AD04_detrend_filtered_Covheadremoved.img
    zFCMap_lFFA_AD05_detrend_filtered_Covheadremoved.img
    zFCMap_lFFA_AD06_detrend_filtered_Covheadremoved.img
    zFCMap_lFFA_AD07_detrend_filtered_Covheadremoved.img
    zFCMap_lFFA_AD08_detrend_filtered_Covheadremoved.img
    zFCMap_lFFA_AD09_detrend_filtered_Covheadremoved.img
    zFCMap_lFFA_AD10_detrend_filtered_Covheadremoved.img
    zFCMap_lFFA_AD11_detrend_filtered_Covheadremoved.img
Warning: There are too few time points.(i.e. The number of the time points is less than 10)
> In rest_to4d at 29
  In rest_ttest2cov_Image at 35
  In rest_ttest2cov_gui>btnCompute_Callback at 132
  In gui_mainfcn at 96
  In rest_ttest2cov_gui at 27

     Read 3D EPI functional images: "G:\cirongliu\ChildData\Me\Result_Me_Voxelvise_NoGlobal_Headmoved\lFFA\CH"..

    Image Files in Group 2:
    zFCMap_lFFA_CH01_detrend_filtered_Covheadremoved.img
    zFCMap_lFFA_CH03_detrend_filtered_Covheadremoved.img
    zFCMap_lFFA_CH04_detrend_filtered_Covheadremoved.img
    zFCMap_lFFA_CH05_detrend_filtered_Covheadremoved.img
    zFCMap_lFFA_CH06_detrend_filtered_Covheadremoved.img
    zFCMap_lFFA_CH07_detrend_filtered_Covheadremoved.img
    zFCMap_lFFA_CH08_detrend_filtered_Covheadremoved.img
    zFCMap_lFFA_CH09_detrend_filtered_Covheadremoved.img

    Two Sapmle T Test Calculating...
> In rest_to4d at 29
  In rest_ttest2cov_Image at 35
  In rest_ttest2cov_gui>btnCompute_Callback at 132
  In gui_mainfcn at 96
  In rest_ttest2cov_gui at 27

     Read 3D EPI functional images: "..."..

    Image Files in Group 2:
    zFCMap_lFFA_CH01_detrend_filtered_Covheadremoved.img
    zFCMap_lFFA_CH03_detrend_filtered_Covheadremoved.img
    zFCMap_lFFA_CH04_detrend_filtered_Covheadremoved.img
    zFCMap_lFFA_CH05_detrend_filtered_Covheadremoved.img
    zFCMap_lFFA_CH06_detrend_filtered_Covheadremoved.img
    zFCMap_lFFA_CH07_detrend_filtered_Covheadremoved.img
    zFCMap_lFFA_CH08_detrend_filtered_Covheadremoved.img
    zFCMap_lFFA_CH09_detrend_filtered_Covheadremoved.img

    Two Sapmle T Test Calculating...