matrices

  1. create matrices using symbols – useful for large correlation matrices, or logical ones, where numbers are replaced by symbols for easy identification
     
    symnum(x, cutpoints = c(0.3, 0.6, 0.8, 0.9, 0.95),
    symbols = if(numeric.x) c(" ", ".", ",", "+", "*", "B")
    else c(".", "|"),
    legend = length(symbols) >= 3,
    na = "?", eps = 1e-5, numeric.x = is.numeric(x),
    corr = missing(cutpoints) && numeric.x,
    show.max = if(corr) "1", show.min = NULL,
    abbr.colnames = has.colnames,
    lower.triangular = corr && is.numeric(x) && is.matrix(x),
    diag.lower.tri = corr && !is.null(show.max))
     
     

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