pool: Pool test results from several studies or sub-studies
In snpStats: SnpMatrix and XSnpMatrix classes and methods

Description Usage Arguments Details Value Author(s) See Also Examples

Given the same set of "score" tests carried out in several studies or in several different sub-samples within a study, this function pools the evidence by summation of the score statistics and score variances. It combines tests produced by single.snp.tests or by snp.lhs.tests and snp.rhs.tests.

1	pool(..., score = FALSE)

`...`	Objects holding the (extended) test results. These must be of class `SingleSnpTests.score` or `snp.tests.glm`
`score`	Is extended score information to be returned in the output object? Relevant only for `SingleSnpTestsScore` objects

This function works by recursive calls to the generic function pool2 which pools the results of two studies.

An object of same class as the input objects (optionally without the .score) extension. Tests are produced for the union of SNPs tested in all the input objects.

David Clayton dc208@cam.ac.uk

pool2, SingleSnpTestsScore-class, GlmTests-class, single.snp.tests, snp.lhs.tests, snp.rhs.tests

# An artificial example which simply doubles the size of a study
data(testdata)
sst <- single.snp.tests(snp.data=Autosomes, cc, data=subject.data,
         score=TRUE)
sst2 <- pool(sst, sst)
summary(sst2)