buildMACAT: Create MACAT list from objects in workspace
In macat: MicroArray Chromosome Analysis Tool

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

This is a wrapper around the preprocessedLoader function. Use it, when you want to build a MACAT-list structure from objects already in your workspace.

1	buildMACAT(matrix, chip, labels = NULL, chromLocObj = NULL)

`matrix`	expression matrix with rows=genes and columns=samples; Rownames have to match chip; Columnnames are not mandatory.
`chip`	Identifier for used microarray
`labels`	Classlabels for samples, has to have length=number of columns in matrix
`chromLocObj`	Object of class `chromLocation` specifying the genomic position, each probe on the array is mapped to. If not provided, it is build in the function using `annotate`'s function `buildChromLocation`.

This is only a convenience wrapper around the function preprocessedLoader for the case, that you want to build a MACAT-list from objects in your workspace.

A MACAT-list structure. For an example and a description of the format see data stjude in package 'stjudem'.

MACAT development team

preprocessedLoader,stjude in package 'stjudem'

 X <- matrix(rnorm(200),nrow=20,ncol=10)
 rownames(X) <- c('34916_s_at','34917_at','34462_at','163_at','35219_at',
	'31641_s_at','33300_at','33301_g_at','38950_r_at','41249_at',
	'294_s_at','32004_s_at','33299_at','41243_at','33341_at','362_at',
	'1918_at','41499_at','41500_at','41282_s_at')
 colnames(X) <- paste("Sample",1:10,sep="")
 y <- rep(c("A","B"),c(5,5))
 toy <- buildMACAT(X,"hgu95av2.db",y)
 summary(toy)