当你要在这个矩阵列表中选择一个单独的矩阵时，这个分布曲线将显示有一个特殊矩阵值元素的数量。
When you select a single metric in the metric list, the distribution graph will show the number of elements that have a particular metric value.
对于那些特殊情况，即选择的节点可能匹配您正在寻找的元素，那么跟XPath中的祖先一样，子孙也具有descendant - or - self(参见图3)。
Like ancestor in XPath, descendant has a descendant-or-self for those special cases where the selected node might match what you're looking for (see Figure 3).
如果你想提醒大家注意某个特殊元素，你有没有考虑过选择性使用颜色？
IF you wish to draw attention to a particular element, have you considered selective chromacity?
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