Description Usage Arguments Details Value Note References See Also

Calculates the Rank Product from a set of gene rank probabilities

1 | ```
calcRP(x)
``` |

`x` |
numeric vector of gene rank probabilities |

The low level calculation of the RP value, as described in the Rank Product paper by Rainer Breitling. Given an ordering of N genes in a differential expression result, the probability of a gene occuring at position j is given by (j/N). With a set of K replicates, Breitling defines the RP value for a gene as the K'th root of the product of the probabilities from all K replicates.

numeric value of length 1, equivalent to the geometric mean of `x`

Implemented via `log2(x)`

for numerical stability, and further
normalized by the number of replicates K to allow comparisons
between datasets.

As implemented, it is equivalent to `logmean`

. Contrast with
`mean`

and `sqrtmean`

.

Breitling, R. FEBS Letters 573 (2004)

`rankProduct`

, `rankProductDiffExpress`

, for
the higher level routines based on Rank Product

Embedding an R snippet on your website

Add the following code to your website.

For more information on customizing the embed code, read Embedding Snippets.