mat_2scipy_sparse: conversion of an R matrix to a scipy sparse matrix

Description Usage Arguments Details References Examples

View source: R/nmslib.R

Description

conversion of an R matrix to a scipy sparse matrix

Usage

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mat_2scipy_sparse(x, format = "sparse_row_matrix")

Arguments

x

a data matrix

format

a character string. Either "sparse_row_matrix" or "sparse_column_matrix"

Details

This function allows the user to convert an R matrix to a scipy sparse matrix. This is useful because the nmslibR package accepts only python sparse matrices as input.

References

https://docs.scipy.org/doc/scipy/reference/sparse.html

Examples

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if (reticulate::py_available() && reticulate::py_module_available("scipy")) {

  library(nmslibR)

  set.seed(1)

  x = matrix(runif(1000), nrow = 100, ncol = 10)

  res = mat_2scipy_sparse(x)

  print(dim(x))

  print(res$shape)
}

nmslibR documentation built on March 13, 2020, 2 a.m.