Description Usage Arguments Value Examples
Writes SVMLight sparse matrix file format. Requires Matrix
and sparsio
packages.
1 | sparse.write(file, x, y = numeric(nrow(x)), zero_based = TRUE)
|
file |
Type: character. Path to your SVMLight file. |
x |
Type: any supported sparse matrix. The sparse matrix to write as SVMLight file format. Defaults to |
y |
Type: integer vector. The labels associated to the corresponding rows. |
zero_based |
Type: logical. Whether columns are starting from |
TRUE when the function returns.
1 2 3 4 5 6 | library(Matrix)
sparse_matrix <- sparseMatrix(i = 1:100, j = 1:100, x = 1:100)
temp_file <- tempfile(fileext = ".svm")
sparse.write(file = temp_file, x = sparse_matrix, y = rep(1, ncol(sparse_matrix)))
sparse_matrix_read <- sparsio::read_svmlight(temp_file)
identical(sparse_matrix, sparse_matrix_read$x)
|
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