Dear SPMers,
Does SPM5 require that voxel intensities of the images to be analyzed be
in a certain numerical range/type? I am having trouble figuring out why I
get this error when trying to get results through the GUI:
SPM5: spm_results_ui (v$Rev: 656 $) 12:02:25 - 03/10/2007
========================================================================
SPM computation : ...initialising
SPM computation : ...done
??? Error using ==> betainc
X must be in the interval [0,1].
Error in ==> spm_Tcdf at 106
F(Q) = xQxPos -(xQxPos*2-1).*0.5.*betainc(v(Qv)./(v(Qv)+x(Qx).^2),v
(Qv)/2,1/2);
Error in ==> spm_P_RF>spm_ECdensity at 157
EC(1,:) = 1 - spm_Tcdf(t,v);
Error in ==> spm_P_RF at 59
EC = spm_ECdensity(STAT,Z,df);
Error in ==> spm_uc_RF at 47
p = spm_P_RF(1,0,u,df,STAT,R,n);
Error in ==> spm_uc at 39
u = spm_uc_RF(a,df,STAT,R,n);
Error in ==> spm_getSPM at 591
u = spm_uc(u,df,STAT,R,n,S);
Error in ==> spm_results_ui at 264
[SPM,xSPM] = spm_getSPM;
??? Error using ==> [hReg,xSPM,SPM] = spm_results_ui;
Error using ==> betainc
X must be in the interval [0,1].
??? Error using ==> keyboard
Error while evaluating uicontrol Callback
----
My smoothed normalized images have voxel intensities between 0-1, double
data type. I am able to create the basic model (multiple regression), and
estimate, creating a ResMS.img image. The error comes when I try to do a
T test in Results, after the FWE step. Any insight into this problem is
greatly appreciated. Thank you very much.
Sincerely,
Kalani Matsumura
Neurobehavioral Research, Inc.
Honolulu, HI
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