the y axis is crossing x axis. how to make them just connected?

hi i am appending a category plot to another plot and keeping the x axis of the category appear.
the problem is that y axis is crossing x axis as shown in the attachment. How to make two axises just connected each other?

thanks.
1_3.jpg
ModifyGraph tick(bottom)=3 // turn ticks off

--Jim Prouty
Software Engineer, WaveMetrics, Inc.
JimProuty wrote:
ModifyGraph tick(bottom)=3 // turn ticks off

--Jim Prouty
Software Engineer, WaveMetrics, Inc.


thank you Jim. However, it doesn't work.....

this code disappeared the tick but not the one at "0"

BTW the axis is named category_bottom
2.pxp
JimProuty wrote:
ModifyGraph standoff=0

--Jim Prouty
Software Engineer, WaveMetrics, Inc.


Great Thanks.

I am reading ModifyGraph.