plotting two y-axes, lines and bars in one plot

[Simon]

alright, now the redefining works! (thank you very much for your 
explanation!)

I guess, I did not figure out my problem the right way... sorry! Aim is 
something like the appended png-file... (even if I don't like that the 
two upper 'axes' (or subplots) are divided from each other... I built 
that one with matplotlib in python).

In words: The bars should be plotted downwards from the upper frame line 
as basis (0). The reversing of the second y-axis is done easily now with 
your new function, but still the x-axis is taken as basis and the bars 
show up.

Another problem occured, when I tried to combine some fewer insights in 
scilab-plotting to pltseries0. Like you see on the example-file, the 
x-ticks should be dates in the end (For some applications just years, 
but sometimes also dates like 'Jan. 1983' - till now I built them with 
datenum and datevec, respectively). You mentioned a way to handle dates 
with drawaxis in an earlier thread.  Is it possible to combine that with 
pltseries0?

Sorry for all these special demands - I'm just trying to figure out if 
scilab may be a suitable tool for me and my work.

Greetings,
Simon
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