Description Usage Arguments Details Value Author(s) References Examples

A small number of meta-analysis functions for comparing two gene expression experiments are provided.

1 2 3 |

`d` |
A vector of t-statistics, i.e. the output of |

`n` |
The number of t-statistics. |

`data` |
The data used to compute t-statistics, either a |

`categ` |
A vector of 0's and 1's indicating group membership. |

`ng1` |
The number of samples in group 1. |

`ng2` |
The number of samples in group 2. |

The functions `getdF`

compute t-test statistics
for the input data and group membership (note that group membership
must be indicated by a vector of 0's and 1's).

The function `dstar`

computes an unbiased estimate of the t-test.
The function `sigmad`

computes the variance estimate of
`dstar`

.

The different functions have different return values, but generally they are vectors of the requested quantities.

L. Lusa, R. Gray and R. Gentleman

Choi et al, Combining multiple microarray studies and modeling interstudy variation. Bioinformatics, 2003, i84-i90.

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```
Loading required package: Biobase
Loading required package: BiocGenerics
Loading required package: parallel
Attaching package: 'BiocGenerics'
The following objects are masked from 'package:parallel':
clusterApply, clusterApplyLB, clusterCall, clusterEvalQ,
clusterExport, clusterMap, parApply, parCapply, parLapply,
parLapplyLB, parRapply, parSapply, parSapplyLB
The following objects are masked from 'package:stats':
IQR, mad, sd, var, xtabs
The following objects are masked from 'package:base':
Filter, Find, Map, Position, Reduce, anyDuplicated, append,
as.data.frame, cbind, colMeans, colSums, colnames, do.call,
duplicated, eval, evalq, get, grep, grepl, intersect, is.unsorted,
lapply, lengths, mapply, match, mget, order, paste, pmax, pmax.int,
pmin, pmin.int, rank, rbind, rowMeans, rowSums, rownames, sapply,
setdiff, sort, table, tapply, union, unique, unsplit, which,
which.max, which.min
Welcome to Bioconductor
Vignettes contain introductory material; view with
'browseVignettes()'. To cite Bioconductor, see
'citation("Biobase")', and for packages 'citation("pkgname")'.
Loading required package: genefilter
```

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