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Subset a cellspec object by cells and features

Source: R/methods.R
sub-.cellspec.Rd

x[i, j] keeps the cells selected by i and the features selected by j. All components stay aligned: cells and measurements rows are subset together, dictionary rows follow the kept features, and adjacency contacts whose cells were removed are dropped. images and channels are kept unchanged.

Usage

# S3 method for class 'cellspec'
x[i, j, ..., drop = FALSE]

Arguments

x

A cellspec object.

i

Cells to keep: a logical vector with one value per cell, or positive or negative integer positions. Missing means all cells.

j

Features to keep: a character vector of feature identifiers, a logical vector with one value per feature, or integer positions. Missing means all features.

...

Not used; must be empty.

drop

Not used; subsetting always returns a cellspec object.

Value

A cellspec object.

See also

Other methods: as.data.frame.cellspec(), cellspec-methods, plot.cellspec()

Examples

x <- cs_example()
dim(x)
#> [1] 80 19
big <- x[cs_cells(x)$area > 60, ]
dim(big)
#> [1] 47 19
means <- x[, cs_features(x, statistic = "mean")]
dim(means)
#> [1] 80  8