Nothing
asjson_array_fun <- function(x, collapse = TRUE, na = NULL, oldna = NULL, matrix = c("rowmajor", "columnmajor"), auto_unbox = FALSE, keep_vec_names = FALSE, indent = NA_integer_, ...) {
matrix <- match.arg(matrix)
# reset na arg when called from data frame
if (identical(na, "NA")) {
na <- oldna
}
# 1D arrays are vectors
if (length(dim(x)) < 2) {
return(asJSON(c(x), matrix = matrix, na = na, indent = indent_increment(indent), ...))
}
# if collapse == FALSE, then this matrix is nested inside a data frame,
# and therefore row major must be forced to match dimensions
if (identical(matrix, "columnmajor") && collapse == FALSE) {
return(apply(x, 1, asJSON, matrix = matrix, na = na, indent = indent_increment(indent), ...))
}
# dont pass auto_unbox (never unbox within matrix)
m <- asJSON(c(x), collapse = FALSE, matrix = matrix, na = na, ...)
dim(m) <- dim(x)
tmp <- if (length(dim(x)) == 2 && identical(matrix, "rowmajor")) {
# Faster special case for 2D matrices
row_collapse(m, indent = indent_increment(indent))
} else {
collapse_array(m, columnmajor = identical(matrix, "columnmajor"), indent = indent)
}
# collapse it
if (collapse) {
collapse(tmp, inner = FALSE, indent = indent)
} else {
tmp
}
}
# Some objects have class Matrix but not class Array
setMethod("asJSON", "array", asjson_array_fun)
setMethod("asJSON", "matrix", asjson_array_fun)
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