| Encode(String, Char, IndexCollection, Boolean) | Encodes numerical data from the specified file. |
| Encode(TextReader, Char, IndexCollection, Boolean) | Encodes numerical data from the stream underlying the specified text reader. |
| Encode(String, Char, IndexCollection, Boolean, DictionaryInt32, Codifier, IFormatProvider) | Encodes categorical or numerical data from the given file into a matrix, applying specific categorical data codifiers. |
| Encode(TextReader, Char, IndexCollection, Boolean, DictionaryInt32, Codifier, IFormatProvider) | Encodes categorical or numerical data from the stream underlying the specified text reader into a matrix, applying specific categorical data codifiers. |