# Impute NA

Impute NA by average / median values, manually entered values, or predicted values. It will build a linear regression model for the prediction.

## How to Access This Feature

![](https://2850417076-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-M4HLCK3olgduYoe3RVS%2F-M4oMvCUDQwHTJ0eWi_f%2F-M4oNBfIIN1mBK-oHqdk%2Fcommand-impute-na-menu.png?generation=1586795479013273\&alt=media)

* From Column Menu for Character Column, select "Map / Convert Data" -> "Map NA to ..."

## Impute NA

![](https://2850417076-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-M4HLCK3olgduYoe3RVS%2F-M4oMvCUDQwHTJ0eWi_f%2F-M4oNBfMMTINRd4wkeo-%2Fimpute_na.png?generation=1586795484849185\&alt=media)

In Calculation field, impute command is partially filled. So complete it by entering following.

1. `Column` - predictor column. this works only when type is "predict". Columns to be used as predictors.
2. `type` - The default is "mean". Set how you want to impute NA. This can be numeric value to replace NA or types listed below.

* "mean" - Mean value
* "median" - Median value
* "value" - Replace the missing values with val
* "predict" - Predict possible values based on other columns

1. `val` (Optional) - This works when type is "value" or "predict". When it's "value", a value to replace NA or a column to replace NA at the same position. If it's "predict", a column to use for prediction of NA. More than one column can be used by indicating \<column(s)>.