The paper combines the logratio transformation method of compositional data with the partial least squares path analysis and puts forward the method of building the multiple linear regression model under the condition that dependent variables are compositional data and the relevant several independent variables are also compositional data. The modeling method can meet the fixed-sum constraint of compositional data, overcome the adverse effect of complete multi-collinearity on modeling in compositional data, and highlight the effect and significance of compositional data thematic meaning in modeling. As the application case, the paper used the suggested method and established the regression model among the employment demands of Beijing three industries, investments and GDP with the structural data of Beijing tertiary industry investments (including real estate), GDP and employment.
compositional data, multiple regression data, partial least squares path analysis
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