Installed SCID vs PC.
Can this give a count or frequency distribution of the ECO codes of the games ?
So far unable to do this.
Under the Tools tab there is a selection "Opening Report".
This gives a lot of data, most of limited value, such as oldest games, most frequent players, shortest wins. Finally there is 5. Theory Table.
This is a table of moves in 8 columns and 20 double rows. How to interpret this is obscure and certainly not intuitive. There is a Help Index. "Theory table" is absent from Help.
Under Options there is a selection "Load ECO file". Found .eco in data subdirectory of bin. Loaded it. Seems to get me nothing.