Why every time the reconstruction is executed, COBRA modifies the file “parameter.xxm” defined by the user?
COBRA modifies the file parameter.xxm in its working directory (default the same folder where COBRA is installed). As long as you keep your parameter.xxm in another place it stays the same. We recommend keeping the xxm files along with the data. The “parameter.xxm” file located in the work directory should not be used as a regular parameter file.