The adjustment methods include the Bonferroni correction (bonferroni) in which the p-values are multiplied by the number of comparisons. Less conservative corrections are also included by Holm (1979) ( holm ), Hochberg (1988) ( hochberg ), Hommel (1988) ( hommel ), Benjamini & Hochberg (1995) ( BH or its alias fdr ), and Benjamini & Yekutieli (2001) ( BY ), respectively.
The corrected p values are signi?cant and, so, we proceed to evaluating the last lest for which i = 3. Because this is the last of the series, the corrected p values are now equal to the uncorrected p value of p = p •Sidµak; 3j3 = pBonferroni; 3j =:612300, which is clearly not signi?cant. Table 1 gives the results of the Holm.
8/3/2016 · The following calculates adjusted p-values using the Bonferroni, Hochberg, and Benjamini and Hochberg (BH) methods: > pvalues <- c (.002, .005, .015, .113, .222, .227, .454, .552, .663, .751) Other adjustments can be requested using holm, hommel, and BY (for the Benjamini, Hochber, and Yekutieli procedure).Hommel's method is more powerful than Hochberg's, but the difference is usually small and the Hochberg p-values are faster to compute. The BH (aka fdr) and BY methods of Benjamini, Hochberg, and Yekutieli control the false discovery rate, the expected proportion of false discoveries amongst the rejected hypotheses.Holm–Bonferroni method - Wikipedia, Holm’s Sequential Bonferroni Procedure, R: Adjust P-values for Multiple Comparisons, The adjust methods include the Bonferroni correction bonferroni, and the less conservative corrections, such as holm, hochberg, hommel, BH (or its alias fdr ), and BY. A pass-through option ( none) is also included. For more information, see the books listed under References.
