The "what-if analysis" USES a virtual index under the covers to assess the effective of the indexes.

“如果这样会怎样的分析”使用了虚拟索引来评估索引的效果。

youdao

Any Changes in this section are temporary, for what-if analysis purposes, and discarded after logout.

此部分任何的改变是暂时的，因为是假定分析的目的，注销后数据就会丢失。

youdao

Because it is so easy to experiment with different Numbers, spreadsheet software is particularly useful for what-if analysis.

因为它很容易与不同的数字实验，电子表格软件是特别有用的假设分析。

youdao

Samples have been sent to a lab for analysis to see if there is any link to the Gulf oil spill.

VOA: standard.2010.05.18

And so, even by units analysis, if the units come out right, you've got a good shot that unless you've really, really messed up, that the answer is going to be right.

甚至在单位分析中，如果你的单位正确，你就能做的很有条理否则会一团糟，而注意了单位你的答案才有可能正确。

麻省理工公开课 - 固态化学导论课程节选

So I think that if cost-benefit analysis isn't employed, the greater good is sacrificed, in this case.

所以我认为此种情况下，如果不用成本效益分析，会牺牲更多人的利益。

耶鲁公开课 - 公正课程节选

With the software, companies can do things like track website conversions and ticket backlogs, as well as engage in what-if analysis.

FORBES: GoodData Hits a Gusher with Big Data

As a result, they can do what-if analysis, model data, and run sophisticated data mining and forecasting algorithms that return answers within minutes, enabling them to fine-tune and refine their offers and service bundles to accurately reflect the needs of their subscribers.

FORBES: Big Data: A Picture Is Worth A Thousand Words

But Billy Beane hired them anyway if his analysis showed they could help his team win games.

FORBES: How Would Billy Beane Manage An Investment Team?