Creates empty model

model = cv.SVMSGD()
model = cv.SVMSGD(...)

The first variant creates an empty model. Use cv.SVMSGD.train to train the model. Since SVMSGD has several parameters, you may want to find the best parameters for your problem or use cv.SVMSGD.setOptimalParameters to set some default parameters.

The second variant accepts the same parameters as the train method, in which case it forwards the call after construction.