Python数据分析 - np.linspace()

numpy.linspace(start, stop, num=50, endpoint=True, retstep=False, dtype=None)
产生从start到stop的等差数列,num为元素个数,默认50个

多用于模型训练

>>>numpy.linspace(1,10)
#out:
>[  1.           1.18367347   1.36734694   1.55102041   1.73469388

   1.91836735   2.10204082   2.28571429   2.46938776   2.65306122

   2.83673469   3.02040816   3.20408163   3.3877551    3.57142857

   3.75510204   3.93877551   4.12244898   4.30612245   4.48979592

   4.67346939   4.85714286   5.04081633   5.2244898    5.40816327

   5.59183673   5.7755102    5.95918367   6.14285714   6.32653061

   6.51020408   6.69387755   6.87755102   7.06122449   7.24489796

   7.42857143   7.6122449    7.79591837   7.97959184   8.16326531

   8.34693878   8.53061224   8.71428571   8.89795918   9.08163265

   9.26530612   9.44897959   9.63265306   9.81632653  10.        ]

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