[Matplotlib-users] Hist : bars inside grid

[christophe <ar...@gm...>]

hello,

I try to have my hist bars inside grids, some bars creep into others..
I create my hist thus:
 bins = nx.arange(1-(0.9/2),max(values))
 n, bins, patches = hist(values, width=0.9)

example:
http://ark42.free.fr/graph.png

and I have display problems for axis names, I use : 
xticks(arange(len(names)), names)


if any idea.. thanks :)