我用的是matlab2019b,分割模板选择的是aal90。community index，我填了90，之后出现如下报错。
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我没算过这个指标，从GRETNA的文档中（P36）可以看到：
Community Index: A list of numbers that represent the predefined module division for each
node in your matrices. The value of the community index must be consistent with the number of nodes in the matrix. The community index will be used for all subjects, and in this case, the participant coefficients of nodes for all subjects are calculated based on the same module structure.
所以我猜测这个参数应该是输入一串数字，表示每个节点所归属的模块编号。
谢谢老师的回复