# TODOs & FIXMEs * repro must have foreign keys to dataset **and** subject * Dataset finding samplerate in stimuli.dat can be improved * Reading fi data from old-style directories * maybe delegate this to Stimulus? * implement alternative dataSources, somehow * stimulus contrast is not read from nix file (e.g. filestimulus) maybe a problem with all mutables? * Add relacs_nix_version to dataset, could be used to decide how to read stuff, in particular, we will switch to DataFrames for most features after nixio version 1.5