Hi Doug,
Just wanted to follow up on this. I'm getting the error that says that the
QDEC GLM design creates 0 factors, regardless of how many of the factors in the
data table I sent are included in the design. (There are a total of 2 discrete
and 9 continuous variables in the data table.)
I haven't been able to find any information on this error in the archive -
would love your thoughts.
Thanks,
Kate
________________________________________
From: freesurfer-boun...@nmr.mgh.harvard.edu
[freesurfer-boun...@nmr.mgh.harvard.edu] on behalf of McLaughlin, Katie
[katie.mclaugh...@childrens.harvard.edu]
Sent: Thursday, July 31, 2014 5:20 PM
To: Freesurfer support list
Subject: Re: [Freesurfer] GLM error in QDEC
Hi Doug,
I'm using 5.3.
This error was generated when I had more variables in the model, so I used the
option within qdec to remove variables from the data table to see if that had
any effect (i.e., deleted everything except one categorical variable). Still
got the error you see below.
Thanks,
Kate
________________________________________
From: freesurfer-boun...@nmr.mgh.harvard.edu
[freesurfer-boun...@nmr.mgh.harvard.edu] on behalf of Douglas N Greve
[gr...@nmr.mgh.harvard.edu]
Sent: Thursday, July 31, 2014 5:14 PM
To: freesurfer@nmr.mgh.harvard.edu
Subject: Re: [Freesurfer] GLM error in QDEC
What version of FS are you using? When I load that file in 5.3 qdec, it
creates several discrete classes, see below
doug
40 1179 c 17.514000 0.944336 f 12.000000 14.000000 0.000000
-7.500000 0.452381 1565300.000000 15300.000000
41 1180 c 17.330600 0.760936 f 1.000000 0.000000 0.000000 -18.500000
-13.547619 1452200.000000 -97800.000000
42 1181 c 16.188900 -0.380764 f 10.000000 6.000000 0.000000
-9.500000 -7.547619 1489390.000000 -60610.000000
1 maltreatment discrete 2
1 c
2 m
2 age continuous 0
3 age_demean continuous 0
4 sex discrete 2
1 m
2 f
5 internalizing continuous 0
6 externalizing continuous 0
7 hs_less continuous 0
8 internal_demean continuous 0
9 external_demean continuous 0
10 ICV continuous 0
11 ICV_demean continuous 0
Continuous Factors: Mean: StdDev:
------------------- ----- -------
age 16.570 1.410
age_demean -0.000 1.410
internalizing 19.500 12.769
externalizing 13.548 9.759
hs_less 0.119 0.328
internal_demean 0.000 12.769
external_demean 0.000 9.759
ICV 1554609.048 168177.248
ICV_demean 4609.048 168177.248
Number of subjects: 42
Number of factors: 11 (2 discrete, 9 continuous)
Number of classes: 4
Number of regressors: 40
On 07/31/2014 02:27 PM, McLaughlin, Katie wrote:
> Hi Doug et al,
>
> I'm trying to run an analysis in QDEC and continue to get an error
> that says that the QDEC GLM design creates 0 factors.
>
> I'm attaching my data table here as well as the output of QDEC. I've
> tried deleting all variables in my data file other than one and
> testing just that comparison, but no luck.
>
> Any thoughts are much appreciated.
>
> Thanks,
> Kate
>
> SUBJECTS_DIR is
> '/net/rc-fs-nfs/ifs/data/Shares/DMC-Sheridan2/projects/SAS/FreeSurfer/FS_5.3'
> Input table:
> /neuro/labs/sheridanlab/projects/SAS/FreeSurfer/FS_5.3/qdec/qdec.table.maltreatment.dat
> Subj#, SubjID, Data...
> 1 1009 c
> 2 1014 c
> 3 1032 c
> 4 1034 c
> 5 1041 m
> 6 1043 m
> 7 1047 c
> 8 1058 m
> 9 1077 c
> 10 1094 m
> 11 1096 c
> 12 1097 c
> 13 1099 c
> 14 1100 m
> 15 1114 m
> 16 1119 m
> 17 1123 m
> 18 1125 c
> 19 1126 c
> 20 1128 c
> 21 1134 c
> 22 1137 m
> 23 1139 m
> 24 1142 m
> 25 1143 m
> 26 1153 m
> 27 1154 m
> 28 1157 c
> 29 1158 m
> 30 1163 m
> 31 1165 m
> 32 1166 m
> 33 1167 m
> 34 1171 c
> 35 1173 c
> 36 1175 c
> 37 1176 c
> 38 1177 m
> 39 1178 m
> 40 1179 c
> 41 1180 c
> 42 1181 c
> 1 maltreatment discrete 2
> 1 c
> 2 m
> Continuous Factors: Mean: StdDev:
> ------------------- ----- -------
>
> Number of subjects: 42
> Number of factors: 1 (1 discrete, 0 continuous)
> Number of classes: 2
> Number of regressors: 2
> ============================================================
> ERROR: QdecGlmDesign::Create: zero factors!
>
>
>
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--
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gr...@nmr.mgh.harvard.edu
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