addProjections: add a series of projectors to transformed assay data in a...
In vjcitn/pcmp: projection comparison app

add a series of projectors to transformed assay data in a SingleCellExperiment

1 2	addProjections(sce, tx = function(x) log(x + 1), projectors, assayind = 1, ...)

`sce`	SingleCellExperiment instance
`tx`	function that will transform assay quantifications, defaults to 'function(x) log(x+1)'
`projectors`	a list of list of functions like that created
`assayind`	numeric(1) second argument ('i') to assay(), defaults to 1
`...`	not used by 'defaultProjectors()'

if (interactive()) {
sce = sce300xx
reducedDims(sce) = NULL
ov = options()$verbose
options(verbose=TRUE)
sce = addProjections(sce, proj=defaultProjectors())
sce
options(verbose=ov) # restore
}