ePowerLI | R Documentation |
executes the ePowerLI Analysis Function with given input parameters
ePowerLI(nSim = 500, visits = 3, n = c(560, 563, 295), x1mean = c(8.8, 12.8, 16.8), x1sd = c(2.1, 2.2, 2.9), x2mean = c(-0.09, 0.02, 0.13), x2sd = c(0.4, 0.4, 0.4), beta1 = c(-0.01), beta2 = c(0.06), betaI = c(-0.004, -0.01, -0.02), Sigma = matrix(c(0.1, 0.07, 0.07, 0.07, 0.1, 0.07, 0.07, 0.07, 0.1), nrow = 3, ncol = 3, byrow = T), alpha = 0.05, plot.pdf = T, plot.label = "", plot.name = "LIplot.pdf", seed = 1)
nSim |
number of simulations |
visits |
number of study visits |
n |
a vector of the number of subjects at each visit |
x1mean |
is the mean of x1 at each visit |
x1sd |
is the sd of x1 at each visit |
x2mean |
is the mean of x2 at each visit |
x2sd |
is the sd of x2 at each visit |
beta1 |
vector of the main effects for x1 at each visit on the outcome Y |
beta2 |
vector of the main effects for x2 at each visit on the outcome Y |
betaI |
the vector of effect sizes for the interaction of x1 and x2 on the normally distributed outcome for a range of values (usually at least 2) |
Sigma |
is the variance covariance matrix for the outcome Y |
alpha |
alpha |
plot.pdf |
if this is True then the function will produce a plot in the working directory |
plot.label |
label for the plot |
plot.name |
name for the plot |
seed |
seed value for RNG |
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