| findLoss | R Documentation |
This function finds loss scores for single-arm designs, in particular, designs found using the function singlearmdesigns(). Weights w0 and w1 are chosen, and the loss for each design is found using the equation loss = w0\*ESS(0) + w1\*ESS(1) + (1-w0-w1)\*N
findLoss(main.output, w0, w1)
main.output |
Output from function singlearmDesigns(). |
w0 |
Choice of weight on ESS(0) |
w1 |
Choice of weight on ESS(0) |
Output is a list identical to the output from function singlearmDesigns(), but with absolute and ranked loss scores added.
Martin Law, martin.law@mrc-bsu.cam.ac.uk
output <- singlearmDesign(nmin = 30, nmax = 30, C = 5, p0 = 0.1, p1 = 0.4, power = 0.8, alpha = 0.05) output.w.loss <- findLoss(main.output=output, w0=0.2, w1=0.3)