• Title/Summary/Keyword: ImputeTS

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Comparision of Missing Imputaion Methods In fine dust data (미세먼지 자료에서의 결측치 대체 방법 비교)

  • Kim, YeonJin;Park, HeonJin
    • The Journal of Bigdata
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    • v.4 no.2
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    • pp.105-114
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    • 2019
  • Missing value replacement is one of the big issues in data analysis. If you ignore the occurrence of the missing value and proceed with the analysis, a bias can occur and give incorrect results for the estimate. In this paper, we need to find and apply an appropriate alternative to missing data from weather data. Through this, we attempted to clarify and compare the simulations for various situations using existing methods such as MICE and MissForest based on R and time series-based models. When comparing these results with each variable, it was determined that the kalman filter of the auto arima model using the ImputeTS package and the MissForest model gave good results in the weather data.

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