tex {sse} | R Documentation |
Methods for function tex
tex(x, type, ...)
x |
The object of class power used for extraction |
type |
Currently available:
|
... |
Not used so far |
A character string.
This methods prepare strings that can directly be used for including information from objects of power into Sweave reports.
## defining the range of n and theta to be evaluated psi <- powPar(theta = seq(from = 0.5, to = 1.5, by = 0.1), n = seq(from = 20, to = 60, by = 2), muA = 0, muB = 1) ## defining a power-function powFun <- function(psi){ power.t.test(n = n(psi)/2, delta = pp(psi, "muA") - pp(psi, "muB"), sd = theta(psi) )$power } ## evaluating the power-function for all combinations of n and theta calc <- powCalc(psi, powFun) ## adding example at theta of 1 and power of 0.9 pow <- powEx(calc, theta = 1, power = 0.9) ## drawing the power plot with 3 contour lines plot(pow, xlab = "Standard Deviation", ylab = "Total Sample Size", at = c(0.85, 0.9, 0.95)) ## tex(pow, type = "sampling")