R/sortExpressions.R

Defines functions `sortExpressions`

# Copyright (c) 2019, Adrian Dusa
# All rights reserved.
# 
# Redistribution and use in source and binary forms, with or without
# modification, in whole or in part, are permitted provided that the
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#     * The names of its contributors may NOT be used to endorse or promote products
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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`sortExpressions` <- function(mat) {
    for (i in rev(seq(ncol(mat)))) {
        mat <- mat[order(mat[, i], decreasing = TRUE), , drop = FALSE]
        if (length(wx <- which(mat[, i] > 0)) > 0) {
            rest <- if (max(wx) == nrow(mat)) NULL else seq(max(wx) + 1, nrow(mat))
            mat <- mat[c(order(mat[wx, i]), rest), , drop = FALSE]
        }
    }
    return(mat[order(apply(mat, 1, function(x) sum(x > 0))), , drop = FALSE])
}

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QCA documentation built on May 2, 2019, 4:47 p.m.