fda.usc (version 2.0.1)

FDR: False Discorvery Rate (FDR)

Description

Compute the False Discovery Rate for a vector of p-values and alpha value.

Usage

FDR(pvalues = NULL, alpha = 0.95, dep = 1)
pvalue.FDR(pvalues = NULL, dep = 1)

Arguments

pvalues

Vector of p-values

alpha

Alpha value (level of significance).

dep

Parameter dependence test. By default dep = 1, direct dependence between tests.

Value

Return:

• out.FDR =TRUE. If there are significative differences.

• pv.FDR p-value for False Discovery Rate test.

Details

FDR method is used for multiple hypothesis testing to correct problems of multiple contrasts. If dep = 1, the tests are positively correlated, for example when many tests are the same contrast. If dep < 1 the tests are negatively correlated.

References

Benjamini, Y., Yekutieli, D. (2001). The control of the false discovery rate in multiple testing under dependency. Annals of Statistics. 29 (4): 1165-1188. DOI:10.1214/aos/1013699998.

See Also

Function used in fanova.RPm

Examples

# NOT RUN {
 p=seq(1:50)/1000
 FDR(p)
 pvalue.FDR(p)
 FDR(p,alpha=0.9999)
 FDR(p,alpha=0.9)
 FDR(p,alpha=0.9,dep=-1)
# }

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