selectROI-methods: Select regions-of-interest of an imaging dataset

In Cardinal: A mass spectrometry imaging toolbox for statistical analysis

Description

Manually select regions-of-interest or pixels on an imaging dataset. The selectROI method uses the built-in locator function. The method has the same form as the image method for plotting imaging datasets.

The results are returned as logical vectors indicating which pixels have been selected. These logical vectors can be combined into factors using the makeFactor function.

Usage

## S4 method for signature 'SparseImagingExperiment'
selectROI(object, ..., mode = c("region", "pixels"))

## S4 method for signature 'SImageSet'
selectROI(object, formula = ~ x * y,
    mode = c("region", "pixels"),
    ...,
    main,
    subset = TRUE,
    lattice = FALSE)

makeFactor(..., ordered = FALSE)

Arguments

object	An imaging dataset.
formula	Passed to image.
mode	What kind of selection to perform: 'region' to select a region-of-interest, or 'pixels' to select individual pixels.
...	Addtional arguments to be passed to image for selectROI, or name-value pairs of logical vectors to be combined by makeFactor.
ordered	Should the resulting factor be ordered or not?
main	Passed to image.
subset	Passed to image.
lattice	Must be false.

Value

A logical vector of length equal to the number of pixels for selectROI.

A factor of the same length as the passed logical vectors for makeFactor.

Author(s)

Kylie A. Bemis

See Also

image

Cardinal documentation built on Nov. 8, 2020, 11:10 p.m.