Description Usage Arguments Details Value
The price-related differential (PRD) is a measure of veritical equity, and is the mean divided by the weighted mean.
1 |
assessed |
A numeric vector of assessment values. |
saleprice |
A numeric vector of sale prices. |
na.rm |
Logical value indicating whether NA values should be removed. |
The PRD is a measure of vertical equity. It is known to have a slight upward bias. For this reason, the PRB is a regarded as a more reliable metric. PRD values above 1.03 are indicative of assessment regressivity, while values below 0.98 is indicative of assessment progressivity.
Numeric vector of length one.
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