numpy.ones
时间: 2023-10-18 08:04:58 浏览: 74
numpy.ones()是一个函数,它返回一个具有给定形状、数据类型和顺序的数组。例如,可以使用np.ones((3,4),dtype=np.int64)来创建一个形状为(3,4)、数据类型为int64的数组,其中所有元素都设置为1。这个函数在数据分析和机器学习中经常用于创建初始化数组,以便进行各种统计分析和机器学习任务。在Python中,NumPy是一个常用的库,它提供了许多高效处理大量数据的函数和工具。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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