BRAPH 2 format for structural data (single layer)
Description:
This is the tutorial for the formatting of your structural data (such as structural MRI or PET) to BRAPH 2 format.
- Prepare the data in XLS/XLSX
You need to have one file per group of subjects, with the main data in the first sheet and data of covariates in the second sheet (optional).
The XLS/XLSX file consists of the following columns (Sheet 1): Subject ID (column 1), Subject LABEL (column 2), Subject NOTES (column 3), and Brain Regions (column 4 to end; one brain region value per column). The first row contains the headers and in each subsequent row the values for each subject.
Figure 1. Example XLS format for Sheet 1 (on the left) and Sheet 2 (on the right).
The covariates, if desired, must be on the second Sheet of the same XLS/XLSX file. Sheet 2 consists of the following columns: Subject ID (column 1), Subject COVARIATE 1 (column 2), and Subject COVARIATE N (column 3). The first row contains the headers and in each subsequent row the values for each subject.
- Prepare the data in TXT
You need to have two files per group of subjects, with the main data in one file and data of covariates in another file (optional).
The TXT file containing the main data consists of the following columns: Subject ID (column 1), Subject LABEL (column 2), Subject NOTES (column 3) and Brain Regions (column 4 to end; one brain region value per column). The first row contains the headers and in each subsequent row the values for each subject.
The TXT file containing the covariates must be in the same directory and have the name as: groupname_covariates.txt where groupname corresponds to the name of the file containing the data. It consists of the following columns: Subject ID (column 1), Subject COVARIATE 1 (column 2), and Subject COVARIATE N (column 3). The first row contains the headers and in each subsequent row the values for each subject.