powerplot | R Documentation |
Uses the function RRsimu
to estimate the power of the
multivariate RR methods (correlation RRcor
, logistic regression
RRlog
, and/or linear regression RRlin
.
powerplot( numRep, n = c(100, 500, 1000), pi, cor = c(0, 0.1, 0.3), b.log = NULL, model, p, method = c("RRcor", "RRlog", "RRlin"), complyRates = c(1, 1), sysBias = c(0, 0), groupRatio = 0.5, alpha = 0.05, nCPU = 1, show.messages = TRUE )
numRep |
number of boostrap replications |
n |
vector of samples sizes |
pi |
true prevalence |
cor |
vector of true correlations |
b.log |
vector of true logistic regression coefficients |
model |
randomized response model |
p |
randomization probability |
method |
multivariate RR method |
complyRates |
probability of compliance within carriers/noncarriers of sensitive attribute |
sysBias |
probability of responding 'yes' in case of noncompliance |
groupRatio |
ratio of subgroups in two-group RR designs |
alpha |
type-I error used to estimate power |
nCPU |
either the number of CPU cores or a cluster initialized via
|
show.messages |
toggle printing of progress messages |
a list of the class powerplot
containing an array res
with the power estimates and details of the simulation (e.g., model, p, pi,
etc.)
RRsimu
for Monte-Carlo simulation / parametric bootstrap
# Not run # pplot <- powerplot(100, n=c(150,250), cor=c(0,.3,.5), # method="RRlog", pi=.6, model="Warner", p=.3) # plot(pplot)
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