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- 2011-5-26
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- 2012-9-12
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to me, variance is easy to get, but correlation is pretty hard to understand. I thought
appraisal smooth >> higher Rsquared >> higher correlation. when data is smoothed, it is more likely develop dependent relationship with others; if volatile, highly possible the Rsquared will be low, hence lower correlation.
did I miss anything? |
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发表于 2011-7-13 13:28
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