+1 vote
in Data Analytics by
Explain what is imputation? List out different types of imputation techniques?

1 Answer

0 votes
by

During imputation we replace missing data with substituted values.  The types of imputation techniques involve are

  • Single Imputation
  1. Hot-deck imputation: A missing value is imputed from a randomly selected similar record by the help of punch card
  2. Cold deck imputation: It works same as hot deck imputation, but it is more advanced and selects donors from another datasets
  3. Mean imputation: It involves replacing missing value with the mean of that variable for all other cases
  4. Regression imputation: It involves replacing missing value with the predicted values of a variable based on other variables
  5. Stochastic regression: It is same as regression imputation, but it adds the average regression variance to regression imputation
  • Multiple Imputation
  1. Unlike single imputation, multiple imputation estimates the values multiple times

Related questions

0 votes
asked May 15, 2020 in MVC Language by sharadyadav1986
+1 vote
asked May 21, 2021 in Data Analytics by SakshiSharma
...