Does anybody know how to compute the Accuracy Ratio in SAS?
Consider plotting the cumulative % of the population along the x-axis, and the cumulative % of occurances of a binary choice variable on the y-axis.
(The plot is similar to the ROC, but the statistic is calculated differently)
Draw a diagonal line from (0,0) to (1,1). The curve of the accuracy ratio should always lie above this diagonal line.
The accuracy ratio is then calculated as the area between the diagonal and the curved line, divided by the total area above the diagonal line.
Any help would be very much appreciated!
Consider plotting the cumulative % of the population along the x-axis, and the cumulative % of occurances of a binary choice variable on the y-axis.
(The plot is similar to the ROC, but the statistic is calculated differently)
Draw a diagonal line from (0,0) to (1,1). The curve of the accuracy ratio should always lie above this diagonal line.
The accuracy ratio is then calculated as the area between the diagonal and the curved line, divided by the total area above the diagonal line.
Any help would be very much appreciated!