Re: [Matplotlib-users] x label is shifted by 1 tick

[Deen S. <khu...@gm...>]

Could someone help me figure out how I can move the x lebel to match
the bar chart?

Thanks,
Deen

On 8/19/07, Deen Sethanandha <khu...@gm...> wrote:
> Hi,
>
>   I am trying to plot a graph as shown.
> http://trac-hacks.org/attachment/wiki/TracMetrixDashboard/cummulative.PNG
>
>   I am not sure why the label start at the point 1 instead of point 0.  Here
> is the code that is used to generate the graph.
>
>
>
> matplotlib.use(*'Agg'*)
>
> fig = figure()
>
> ax = fig.add_subplot(111) # Create supplot with key 111
>
> ax.cla()
>
> ax.plot(numdates, tkt_cummulative_table[*'Enter'*], *'b-'*)
>
> ax.plot(numdates, tkt_cummulative_table[*'Leave'*], *'r-'*)
>
> ax.plot(numdates, tkt_cummulative_table[*'Finish'*], *'g-'*)
>
> ax.set_xlim( numdates[0], numdates[-1] )
>
> ax.xaxis.set_major_locator(DayLocator())
>
> ax.xaxis.set_major_formatter( DateFormatter(*'%Y-%m-%d'*))
>
> ax.fmt_xdata = DateFormatter(*'%Y-%m-%d %H:%M:%S'*)
>
> labels = ax.get_xticklabels()
>
> setp(labels, rotation=45, fontsize=8)
>
> xlabel(*'Dates (day)'*)
>
> ylabel(*'Counts (times)'*)
>
> title(*'Cummulative flow chart for ticket status history'*)
>
> legend((*'Ticket Entered'*, *'Ticket Left'*, *'Ticket Completed'*),
> loc=*'upper
> left'*)
>
>  numdate is the array of date generated from drange function.  I am pretty
> new to matplotlib.  I create these code from looking at the examples. I
> might have done something wrong.  If you could put it out for me, it would
> be very appreciated.
>
>  I am also wonder why we need ax.set_xlim( numdates[0], numdates[-1].
> However,
> if I don't use it.  There graph will include a few days that aren't in the
> numdates in the graph.
>
> Thanks,
>
> Deen
>