![]() ![]()
Spearman's rho is reported separately for
automobiles and trucks. As with Pearson's
correlation coefficient, the association between
Log-transformed sales and
Fuel efficiency is
fairly strong.
However, Spearman's rho reports
the same correlation for the untransformed sales!
This is because rho is based on rank orders, which
are unchanged by log transformation.
Moreover,
outliers have less of an effect on
Spearman's rho, so it's possible to save some time
and effort by using it as a measure of
association.
|
|
Correlations |