Brick_matrix_issparse: Check if a matrix for a chromosome pair is sparse.

View source: R/Brick_functions.R

Brick_matrix_issparseR Documentation

Check if a matrix for a chromosome pair is sparse.

Description

Check if a matrix for a chromosome pair is sparse.

Usage

Brick_matrix_issparse(Brick, chr1, chr2, resolution = NA)

Arguments

Brick

Required. A string specifying the path to the Brick store created with Create_many_Brick.

chr1

Required. A character vector of length 1 specifying the chromosome corresponding to the rows of the matrix

chr2

Required. A character vector of length 1 specifying the chromosome corresponding to the columns of the matrix

resolution

Optional. Default NA When an object of class BrickContainer is provided, resolution defines the resolution on which the function is executed

Value

Returns a logical vector of length 1, specifying if a matrix was loaded as a sparse matrix.

Examples

Bintable.path <- system.file(file.path("extdata", "Bintable_100kb.bins"), 
package = "HiCBricks")

out_dir <- file.path(tempdir(), "matrix_issparse_test")
dir.create(out_dir)

My_BrickContainer <- Create_many_Bricks(BinTable = Bintable.path, 
    bin_delim = " ", output_directory = out_dir, file_prefix = "Test",
    experiment_name = "Vignette Test", resolution = 100000,
    remove_existing = TRUE)

Matrix_file <- system.file(file.path("extdata", 
"Sexton2012_yaffetanay_CisTrans_100000_corrected_chr2L.txt.gz"), 
package = "HiCBricks")

Brick_load_matrix(Brick = My_BrickContainer, chr1 = "chr2L", 
chr2 = "chr2L", matrix_file = Matrix_file, delim = " ", 
remove_prior = TRUE, resolution = 100000)

Brick_matrix_issparse(Brick = My_BrickContainer, chr1 = "chr2L", 
chr2 = "chr2L", resolution = 100000)


koustav-pal/HiCBricks documentation built on Oct. 25, 2022, 12:06 a.m.