which type of data can be used for regression and t-spatio? how to use spss to analyze unbalanced period can spss show unbalanced data with no time how can spss get results for aggregated data? how to do regression with pooled data in spss what is unbalanced data for regression? what is spss pooled data what is pooled data in spss why do i need to run regression on pooled data sss if we do a regression with pooled data in spss what type of data what to do with unbalanced data in spss why are the data pooled in spss why is it necessary to use unbalanced data what is spss in a regression analysis why pooled data spss what is the difference between unbalanced data and pooled data why do i need a pooled data in spss how does spss regression work with pooled data? can you use pooled data in spss what is the spss example of pooled data?