[Add+minor] Analyze: path2data argument; sample save handling reorganized. Loadresults help

Signed-off-by: Oleg Komarov <o.komarov11@imperial.ac.uk>
[Change] Incorporated sampled betas in Analyze (has bug on f = 643)

Signed-off-by: Oleg Komarov <o.komarov11@imperial.ac.uk>