search for: yield_curv

...yield_rate) However, the problem arises when I am not aware how many output files are there as n can be 5 or even 100.       So is it possible to write some loop or some function which will enable me to read 'n' files individually and then keeping "Date" common, only pickup the yield_curve data from each output file. Thanking in advance for any guidance. Regards Amy [[alternative HTML version deleted]]