numpy.linspace介绍

numpy.linspace：在指定范围内返回均匀间隔的数组

In [12]: import numpy as np

In [13]: result = np.linspace(1,10)  #默认生成50个元素

In [14]: result

Out[14]:

array([ 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.        ])

当然你可以指定起始位置、结束为止以及元素的个数：

In [15]: result1 = np.linspace(1,5,20)

In [16]: result1

Out[16]:

array([1.        , 1.21052632, 1.42105263, 1.63157895, 1.84210526,

       2.05263158, 2.26315789, 2.47368421, 2.68421053, 2.89473684,

       3.10526316, 3.31578947, 3.52631579, 3.73684211, 3.94736842,

       4.15789474, 4.36842105, 4.57894737, 4.78947368, 5.        ])