| Type: | Package |
| Title: | Convert Files to and from IDX Format to Vectors, Matrices and Arrays |
| Version: | 1.0.0 |
| Date: | 2018-02-19 |
| Author: | Erik Doffagne |
| Maintainer: | Erik Doffagne <erik.doffagne@gmail.com> |
| Description: | Convert files to and from IDX format to vectors, matrices and arrays. IDX is a very simple file format designed for storing vectors and multidimensional matrices in binary format. The format is described on the website from Yann LeCun http://yann.lecun.com/exdb/mnist/. |
| License: | MIT + file LICENSE |
| URL: | https://github.com/edoffagne/idx2r |
| Suggests: | testthat |
| RoxygenNote: | 6.0.1 |
| NeedsCompilation: | no |
| Packaged: | 2018-02-19 19:02:14 UTC; erik |
| Repository: | CRAN |
| Date/Publication: | 2018-02-20 09:35:13 UTC |
Convert Files to and from IDX Format to Vectors, Matrices and Arrays in R
Description
Convert files to and from IDX format to arrays in R. IDX is a format to store vector and arrays in binary format. Reading IDX format is needed for instance to use the MNIST database of handwritten digits from http://yann.lecun.com/exdb/mnist/ provided by Yann LeCun.
Author(s)
Erik Doffagne
See Also
Useful links:
Examples
m = matrix(1:16, nrow = 4)
file_name = file.path(tempdir(),"m.idx")
write_idx(m, file_name)
mr = read_idx(file_name)
Read an IDX file
Description
This function allows to read an IDX file
Usage
read_idx(file_name, endian = "big")
Arguments
file_name |
character vector containing the name of the file to be read |
endian |
whether the file has "big" or "little" endian |
Examples
m = matrix(1:16, nrow = 4)
file_name = file.path(tempdir(),"m.idx")
write_idx(m, file_name)
mr = read_idx(file_name)
Write an array into an IDX file
Description
This function allows to write an array into an IDX file.
Usage
write_idx(x, file_name, endian = "big")
Arguments
x |
must be a array or a matrix |
file_name |
character vector containing the name of the file to be created |
endian |
whether the file has "big" or "little" endian. |
Examples
m = matrix(1:16, nrow = 4)
file_name = file.path(tempdir(),"m.idx")
write_idx(m, file_name)