Index in position 2 exceeds array bounds (c_null_model_udn_sign)
Dear all,
I get an error when using c_null_model_udn_sign to generate null models.
Index in position 2 exceeds array bounds (must not exceed 697).
Data Sharing of the REST-meta-MDD Project from the DIRECT Consortium
(Note: Part of the content of this post was adapted from the original DIRECT Psychoradiology paper (https://academic.oup.com/psyrad/article/2/1/32/6604754) and REST-meta-MDD PNAS paper (http://www.pnas.org/cgi/doi/10.1073/pnas.1900390116) under CC BY-NC-ND license.)
标准化与协变量的顺序及存在的问题
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尊敬的严老师:
您好,我在进行预处理时,产生了下面两个问题
1、我使用的是EPI模板进行空间标准化的,协变量放在标准化之前和之后都会产生下面问题,这个问题对最终结果的影响大吗?
警告: 矩阵接近奇异值,或者缩放错误。结果可能不准确。RCOND = 1.724427e-09。
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Error caused by running c_null_model_und_sign
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Dear All,
I get an error when I click "generate" in the Network Construction panel.
(The version of MATLAB is 2020b)
I try it several times, but it always happens, even when I don't click Calculate Graph Matrics and Raw Matrix.
To avoid any conflict between toolboxes, All toolboxes, but GraphVar, are removed.
I attach a picture for showing the details of my setting.
Covert surface images in fsaverage5 space into volume images in MNI152 space
- First covert the original image in fsaverage5 space into image in fsaverage space. If your image is in fsaverage space whatsoever, please skip this step
dpabisurf处理demo数据报错
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关于三组ANOVA的分析问题
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After GRF correction, significant clusters are larger
老师好!
我在对一张R.nii图像进行GRF矫正之后,发现看到的cluster比没做矫正之前更大了,这是不是不合理啊?
我的操作是这样的:
1)在Dpabi View的overlay里选定一张R.nii 图像 (这个界面的Nmax 和Nmin分别代表什么呢?我在两台不同电脑上打开同一个图,它出现的数字是不一样的)
2)在Overlay configure 输入P(0.05),df=5(sample size =7。 这里有点奇怪,df改为5后,accept了,但是重新点开‘df’,又是原来默认的数字,得改两遍才会变成我想要的那个数字。)
完成这一步之后,看到的cluster都很小很小,应该是过不了GRF矫正了?
3)Cluster里那一栏选GRF,选定我自己的mask--- voxel p value (0.0214)----cluster p value(0.05)---- Two tailed----Compute
这一步之后,激活的团块面积就变大了!
请求老师解答!非常谢谢!!