np.where的返回值

np.where的返回值是满足条件的元素的索引或根据条件返回的相应值。具体来说，当np.where(condition)时，返回的是每个符合条件的元素的索引，以元组的形式表示。当np.where(condition, x, y)时，如果条件成立，则返回x，如果条件不成立，则返回y。需要注意的是，x和y的尺寸需要和条件满足的元素一致。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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