An alternative to graphically displaying the results is to use the getPower(), findPower(), and getCIwidth() functions. The first and third functions return the power and CI widths, respectively, for each parameter at the specified sample sizes (nVal). The second function uses a getPower() object to find the sample size for a given level of power. If the findPower() function returns the values Inf or NA, it means the sample size values are too large or too small,
respectively, for that parameter at the specified power level.