Man page - mlpack_preprocess_one_hot_encoding(1)
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Manual
| mlpack_preprocess_one_hot_encoding(1) | User Commands | mlpack_preprocess_one_hot_encoding(1) |
NAME
mlpack_preprocess_one_hot_encoding - one hot encoding
SYNOPSIS
mlpack_preprocess_one_hot_encoding -i string [-d vector] [-V bool] [-o unknown] [-h -v]
DESCRIPTION
This utility takes a dataset and a vector of indices and does one-hot encoding of the respective features at those indices. Indices represent the IDs of the dimensions to be one-hot encoded.
If no dimensions are specified with '--dimensions (-d)', then all categorical-type dimensions will be one-hot encoded. Otherwise, only the dimensions given in '--dimensions (-d)' will be one-hot encoded.
The output matrix with encoded features may be saved with the '--output_file (-o)' parameters.
So, a simple example where we want to encode 1st and 3rd feature from dataset ’X.csv' into 'X_output.csv' would be
$ mlpack_preprocess_one_hot_encoding --input_file X.arff --output_file X_ouput.csv --dimensions 1 --dimensions 3
REQUIRED INPUT OPTIONS
- --input_file (-i) [string]
- Matrix containing data.
OPTIONAL INPUT OPTIONS
- --dimensions (-d) [vector]
- Index of dimensions that need to be one-hot encoded (if unspecified, all categorical dimensions are one-hot encoded). Default value [].
- --help (-h) [bool]
- Default help info.
- --info [string]
- Print help on a specific option. Default value ''.
- --verbose (-v) [bool]
- Display informational messages and the full list of parameters and timers at the end of execution.
- --version (-V) [bool]
- Display the version of mlpack.
OPTIONAL OUTPUT OPTIONS
--output_file (-o) [unknown] Matrix to save one-hot encoded features data to.
ADDITIONAL INFORMATION
For further information, including relevant papers, citations, and theory, consult the documentation found at http://www.mlpack.org or included with your distribution of mlpack.
| 06 April 2025 | mlpack-4.6.0 |