conf.limits.nct.M3 {MBESS} | R Documentation |
Largely internal function to determine the noncentrality parameters necessary to form a confidence interval around the population noncentrality parameter and related parameters.
Method 3 uses an iterative scheme in order to determine the critical values. This function
requires the ncp
to be positive, but the function that should be used conf.limits.nct
does not.
conf.limits.nct.M3(ncp, df, conf.level = .95, alpha.lower = NULL, alpha.upper = NULL, tol = 1e-09, sup.int.warns = TRUE, max.steps = 2500, ...)
ncp |
the noncentrality parameter (e.g., observed t-value) of interest |
df |
the degrees of freedom |
conf.level |
the level of confidence for a symmetric confidence interval |
alpha.lower |
the proportion of values beyond the lower limit of the confidence interval (cannot be used with conf.level ) |
alpha.upper |
the proportion of values beyond the upper limit of the confidence interval (cannot be used with conf.level ) |
tol |
is the tolerance of the iterative method for determining the critical values |
sup.int.warns |
Suppress internal warnings (from internal functions): TRUE or FALSE |
max.steps |
maximum number of iterations when finding the lower and upper confidence limit |
... |
allows one to potentially include parameter values for inner functions |
Lower.Limit |
Value of the distribution with Lower.Limit noncentral value that has at its specified quantile F.value |
Prob.Less.Lower |
Proportion of the distribution beyond (i.e., less than) Lower.Limit |
Upper.Limit |
Value of the distribution with Upper.Limit noncentral value that has at its specified quantile F.value |
Prob.Greater.Upper |
Proportion of the distribution beyond (i.e., larger than) Upper.Limit |
This code was adapted from code written by Ken Kelley and Joseph R. Rausch (University of Notre Dame; JRausch@ND.Edu), which was adapted from code written by Michael Smithson (Australian National University; Michael.Smithson@ANU.Edu.AU).
Ken Kelley (University of Notre Dame; KKelley@ND.Edu)
conf.limits.nct