How many parameters in SOMPY?

[abdoulsn]

I've dataset ok 645K rows and 25 features, I've trained using sompy with this:

# train some models and check the best one
for i in range(7):
    sm = SOMFactory().build(data, mapsize=[random.choice(list(range(15, 25))),
                                           random.choice(list(range(10, 15)))],
                            normalization = 'var', initialization='random',
                            component_names=names, lattice="hexa")
    
    sm.train(n_job=4, verbose=False, train_rough_len=16, train_finetune_len=16)
    joblib.dump(sm, path_out+"Models/model_{}.joblib".format(i))

the joblib file has about 750Mo how this can be possible?