---
name: "mlpack_preprocess_imputer"
section: "1"
platform: "linux"
package: "mlpack-bin"
version: "4.6.0-1"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/mlpack_preprocess_imputer"
---

# mlpack\_preprocess\_imputer(1)

impute data

## NAME

**mlpack\_preprocess\_imputer** - impute data

## SYNOPSIS

```
 mlpack_preprocess_imputer -i string -m string -s string [-c double] [-d int] [-V bool] [-o string] [-h -v]
```

## DESCRIPTION

This utility takes a dataset and converts a user-defined missing variable to another to provide more meaningful analysis.

The program does not modify the original file, but instead makes a separate file to save the output data; You can save the output by specifying the file name with'**--output\_file** (**-o**)'.

For example, if we consider 'NULL' in dimension 0 to be a missing variable and want to delete whole row containing the NULL in the column-wise'dataset.csv', and save the result to 'result.csv', we could run :

$ **mlpack\_preprocess\_imputer** **--input\_file** dataset **--output\_file** result **--missing\_value** NULL **--dimension** 0 **--strategy** listwise\_deletion

## REQUIRED INPUT OPTIONS

- **--input\_file (-i) \[*string*\]**

  File containing data.

- **--missing\_value (-m) \[*string*\]**

  User defined missing value.

- **--strategy (-s) \[*string*\]**

  imputation strategy to be applied. Strategies should be one of 'custom', 'mean', 'median', and 'listwise\_deletion'.

## OPTIONAL INPUT OPTIONS

**--custom\_value** (**-c**) \[*double*\] User-defined custom imputation value. Default value 0.

- **--dimension (-d) \[*int*\]**

  The dimension to apply imputation to. Default value 0.

- **--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) \[*string*\]**

  File to save output into. Default value ''.

## 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.