関連ワード:  how to merge two variables in spss    how to combine two variables in spss    how to add two variables in spss    how to merge two categorical variables in spss    how to merge two string variables in spss    how to add multiple variables in spss    how to combine multiple variables in spss    how to merge two variables into one in spss    how to combine two numeric variables in spss    how to combine two nominal variables in spss