Description Usage Arguments Details Value Author(s) References See Also Examples
Returns an estimate of the proportion of true null hypotheses using a convex decreasing density estimate on a vector of p-values.
1 |
p |
numeric vector of p-values, calculated using any test of your choice. Missing values are not allowed |
niter |
number of iterations to be used in fitting the convex, decreasing density for the p-values. Default is 100. |
doplot |
logical, should updated plots of fitted convex decreasing
p-value density be produced at each iteration?
Default is |
doreport |
logical, should the estimated proportion be printed at each iteration?
Default is |
The proportion of true null hypotheses is often denoted pi0.
Numeric value in the interval [0,1] representing he estimated proportion of true null hypotheses, with class
being convest
and the lfdr
attribute containing estimated local false discovery rates.
Long Qu slightly modified and convest
function by Egil Ferkingstad and Mette Langaas in limma
package.
Langaas, M., Ferkingstad, E., and Lindqvist, B. (2005). Estimating the proportion of true null hypotheses, with application to DNA microarray data. Journal of the Royal Statistical Society Series B, 67, 555-572. Preprint at http://www.math.ntnu.no/~mettela/
See 08.Tests for other functions for producing or interpretting p-values.
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