noun
indicator variable; dummy variable
Technical term in statistics and econometrics for a binary variable used to represent categorical data in regression models.
回帰分析では、性別を指示変数として扱うことが多い。
In regression analysis, gender is often treated as an indicator variable.
このモデルには三つの指示変数が含まれている。
This model includes three indicator variables.
Synonymous with 指示変数; ダミー変数 is the more common term in Japanese statistics texts.
Compound of 指示 (instruction, indication) and 変数 (variable), likely a calque from English 'indicator variable'.