Reads a matrix file under strict assumptions that it is entirely numeric and there are no row or column names present in this file.
readr::read_table() to do it efficiently.
Intended for outputs such as those of admixture inference approaches.
Input file (whatever is accepted by
The desired file extension.
A numeric matrix without row or column names.
write_matrix(), the inverse function.
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# to read "data.txt", run like this: # mat <- read_matrix("data") # this also works # mat <- read_matrix("data.txt") # The following example is more awkward # because package sample data has to be specified in this weird way: # read an existing matrix *.txt file file <- system.file("extdata", 'sample-Q3.txt', package = "genio", mustWork = TRUE) mat <- read_matrix(file) mat # can specify without extension file <- sub('\\.txt$', '', file) # remove extension from this path on purpose file # verify .txt is missing mat <- read_matrix(file) # load it anyway! mat
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