Computer Networking: A Top-Down Approach (7th Edition)
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN: 9780133594140
Author: James Kurose, Keith Ross
Publisher: PEARSON
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Python broadcasting. Rewrite the following code without for-loops using vectorization
and python broadcasting.
(a) Given a data matrix X and vector beta compute a vector yhat:
n = X. shape [0]
yhat = np.zeros(n)
for i in range(n):
yhat [i] = beta [0]*X[i, 0] + beta[1]*X[i,1] + beta[2]*X[i, 1]*X[i,2]
yhat
beta[0]*X[: ,0] + beta[1]*X[:,1] + beta[2]*X[:,1]*X[:,2]
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Transcribed Image Text:Python broadcasting. Rewrite the following code without for-loops using vectorization and python broadcasting. (a) Given a data matrix X and vector beta compute a vector yhat: n = X. shape [0] yhat = np.zeros(n) for i in range(n): yhat [i] = beta [0]*X[i, 0] + beta[1]*X[i,1] + beta[2]*X[i, 1]*X[i,2] yhat beta[0]*X[: ,0] + beta[1]*X[:,1] + beta[2]*X[:,1]*X[:,2]
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