How to run a loop to plot a map from a one-dimension array?

Hi all,
I am trying to run a loop for plotting a map from a one-dimension array,
x_avg = (1.1,1.2,1.3,1.4,1.5).
Please help me with the following code.
 do i = 0, k-1
    loopnum=loopnum+1
        gsres@gsFillColor = GetFillColorIndex(cnLevels,polycol,x_avg(i));
        gsres@gsEdgeColor = GetFillColorIndex(cnLevels,polycol,x_avg(i));
        dum1(i) =
gsn_add_polygon(wks,map,(/minlons(i),minlons(i),maxlons(i),maxlons(i)/),
/minlats(i),maxlats(i),maxlats(i),minlats(i)/),gsres)
                             whites(loopnum)=tilename(loopnum)
 end do

I got the error as follows.
fatal:Subscript out of range, error in subscript #0
fatal:An error occurred reading x_avg
fatal:Execute: Error occurred at or near line....

Thanks!

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Received on Tue Aug 20 17:14:26 2013