signature_genes.py 文件源码

def signature_predictions(X0,n_test_samples,n_signatures):
    sidx = np.zeros(X0.shape[1],dtype=np.bool)
    sidx[:n_test_samples] = True
    np.random.shuffle(sidx)
    Xtrain = X0[:,np.invert(sidx)]
    Xtest = X0[:,sidx]
    sg = get_signature_genes(Xtrain,n_signatures,lda=10000000)
    model = build_signature_model(Xtrain,sg)
    Xhat = (model.predict(Xtest[sg].T)).T
    return sg,Xtest,Xhat