This function draws the power graph, with curves sorted by the mean power and smoothed for easier reading.
plot_power(pwr, xname = " ", title, Smooth = TRUE, span = 0.25)
plt, an object of class ggplot.
a matrix of power values, usually from the twosample_power command
Name of variable on x axis
(Optional) title of graph
=TRUE lines are smoothed for easier reading
=0.25bandwidth of smoothing method