1 | initial version |
Not important.
From the User guide of CvStatModel
:
Responses are usually stored in a 1D vector (a row or a column) of CV_32SC1 (only in the classification problem) or CV_32FC1 format, one value per input vector. Although, some algorithms, like various flavors of neural nets, take vector responses.
For classification problems, the responses are discrete class labels.