Mapping out Google Group Usage

[girl meteor]

Hi, I'm wanting to map out Google Group usage. There no more than 500
posts in the group during one month, and the group has been online for
over a year now. So, ideally, it's a simple bar graph, but I fail.
Here's my attempt at creating one:

<img src="http://chart.apis.google.com/chart?
cht=bhs
&chs=700x300
&chd=s:KUIZFDPJF
&chxt=x,y
&chxr=0,0,500,10
&chxl=1:
chxr=
<axis index>,<start of range>,<end of range|>
|Nov 09 |Oct 09| Sep 09 | Aug 09| July 09| June 09| May 09 |April 09 |
March 09|Feb 09|Jan 09|Dec 08|Feb 08| Oct08 | S ep08
chd=t:193, 91, 256, 438, 328, 363, 232, 199, 261, 342, 325, 311, 167,
198, 168
&chco=4D89F9

Could someone help me out? I'm trying to figure out what I'm doing
wrong, but fail miserably :-\

--
Girl Meteor

[KeithB]

Your CHXL parameter contains invalid data: "chxr=....end of range|>".
Removing that displays a pretty nice chart, but you'll probably want
to increase the step-size for your x-axis labels (e.g.
chxr=0,0,500,25).

I'm not sure of the underlying data, but you're using simple encoding
which means the data (and chart) ranges from 0--61 so you'll need to
take this into account to get your data points to match your x-axis
values.

Good luck,
Keith