a question about shading program.

[Liu]

Hi all.

I wrote a subroutine that shade a graph according to a series. The program is as below.

My problem is, after shading, the graph was given a verticle black line(either at the very beginning or the end of a graph)when the graph begins or ends with a shade area.

Could anyone tell me where this line is from and how to solve it? Thank you very much in advance.


subroutine shade(series x, graph %graphname)
smpl @all
scalar obs=@obs(x)
scalar nas=@nas(x)
scalar total=obs + nas

for !i=2 to total
if x(!i)>x(!i-1) then
%shadedate=@otods(!i-1)
%shadedate2=@otods(!i)
graphname.draw(shade, bottom, rgb(215, 216, 203)) %shadedate %shadedate2
endif
next
endsub

[EViews Gareth]

Maybe it is the time of the morning, but I can't quite see what form X should take. How do you specify X to create the shading?

[EViews Gareth]

Actually, I may have figured it out, but I cannot replicate the issue you're seeing. What's the build date of your copy of EViews (available from Help->About EViews)?

[Liu]

It says feb 2 2011 .
so I guess the version should be fine.
the version is 7.1.

Also to answer your question about x, it could be any series of any frequency.

[EViews Gareth]

You might want to update your copy to the latest version.

If you still have the problem, could you upload the workfile and the program that calls the subroutine?