Zen,

A much better way to create the sawtooth graph is to set your data up like
this:

Inventory
1/1/05 5,000
1/2/05 4,000
1/3/05 3,000
1/4/05 2,000
1/5/05 1,000
1/5/05 5,000
1/6/05 4,000
1/7/05 3,000
1/8/05 2,000
1/9/05 1,000
1/9/05 5,000
1/10/05 4,000
1/11/05 3,000
1/12/05 2,000
1/13/05 1,000

Create a simple line chart with your X-axis formatted as dates. Please note
the duplicated dates at 01/05 and 01/09 that include the maximum and minimum
inventory values. The duplicated dates effectively create the sawtooth.
Sorry I didn't create this before my previous post.

----
Regards,
John Mansfield
http://www.pdbook.com




"zen" wrote:

i want to plot a saw tooth graph. this is like an inventory graph where there
is production and instantaneous consumpltion