meta: Returns the values of a meta.data for all cells/samples
In dittoSeq: User Friendly Single-Cell and Bulk RNA Sequencing Visualization

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

Returns the values of a meta.data for all cells/samples

1	meta(meta, object, adjustment = NULL, adj.fxn = NULL)

`meta`	String, the name of the "metadata" slot to grab. OR "ident" to retireve the clustering of a Seurat `object`.
`object`	A Seurat, SingleCellExperiment, or SummarizedExperiment object.
`adjustment`	A recognized string indicating whether numeric metadata should be used directly (default) versus adjusted to be "z-score": scaled with the scale() function to produce a relative-to-mean z-score representation "relative.to.max": divided by the maximum expression value to give percent of max values between [0,1] Ignored if the target metadata is not numeric.
`adj.fxn`	A function which takes a vector (of metadata values) and returns a vector of the same length. For example, `function(x) {log2(x)}` or `as.factor`

Retrieves the values of a metadata slot from object, or the clustering slot if meta = "ident" and the object is a Seurat.

If adjustment or adj.fxn are provided, then these requested adjustments are applied to these values (adjustment first). Note: Alterations via adjustment are only applied when metadata is numeric, but adj.fxn alterations are applied to metadata of any type.

Lastly, outputs these values are named as the cells'/samples' names.

A named vector.

Daniel Bunis

metaLevels for returning just the unique discrete identities that exist within a metadata slot

getMetas for returning all metadata slots of an object

isMeta for testing whether something is the name of a metadata slot

example(importDittoBulk, echo = FALSE)
meta("groups", object = myRNA)

myRNA$numbers <- seq_len(ncol(myRNA))
meta("numbers", myRNA, adjustment = "z-score")
meta("numbers", myRNA, adj.fxn = as.factor)
meta("numbers", myRNA, adj.fxn = function(x) {log2(x)})