Score Test and Meta-Analysis Based on Saddlepoint Approximation
Calculate Saddlepoint p values (for external libraries)
Score test based on saddlepoint approximation
Prepare summary statistics for meta-analysis and perform SPA test.
Preparing the null model
Meta-analysis using SPA test summary statistics
Performs score test using saddlepoint approximation to estimate the null distribution. Also prepares summary statistics for meta-analysis and performs meta-analysis to combine multiple association results. For the latest version, please check <https://github.com/leeshawn/SPAtest>.