Did you use a threshold to filter out voxels with low gray matter volume
when you specified your model? If not, you might want to try that and
see if you still get the same error. Typically GM>10-20% seems to work.
See
http://www.jiscmail.ac.uk/cgi-bin/wa.exe?A2=ind0807&L=SPM&D=0&P=21321
for more details.
Good luck!
-Satoru
-----Original Message-----
From: SPM (Statistical Parametric Mapping) [mailto:[log in to unmask]]
On Behalf Of AEC
Sent: Thursday, August 07, 2008 3:53 PM
To: [log in to unmask]
Subject: [SPM] Paired t test error
Hello all,
When running a paired-t using within-subject gray matter segments, I
have no
trouble viewing my results uncorrected. However, when I try to view FWE
corrected results I get the following error:
Any insight would be hugely appreciated. Thanks in advance.
SPM computation : ...initialising
SPM computation : ...done
Warning: Returning NaN for out of range arguments
> In spm_Pcdf at 88
In spm_P_RF at 106
In spm_uc_RF at 37
In spm_uc at 39
In spm_getSPM at 603
In spm_results_ui at 274
Warning: Returning NaN for out of range arguments
> In spm_Pcdf at 88
In spm_P_RF at 106
In spm_uc_RF at 38
In spm_uc at 39
In spm_getSPM at 603
In spm_results_ui at 274
??? Error using ==> betainc at 35
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 603
u = spm_uc(u,df,STAT,R,n,S);
Error in ==> spm_results_ui at 274
[SPM,xSPM] = spm_getSPM;
??? Error using ==> [hReg,xSPM,SPM] = spm_results_ui;
Error using ==> betainc at 35
X must be in the interval [0,1].
??? Error while evaluating uicontrol Callback
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