Plot line in the middle of a time series

Question

Hi
I am trying to plot the limits for a graph. These limits are specified for 10, 20 and 30 ms (In particular I want to plot the limits for neck calibration tests for H3 dummy calibration). For this I need to draw a line from 10 ms to 30 ms. How do I do this? So far I am generating a channel by using either chnlingen or chngenval or chd. But when I generate values from the middle obviously it makes the values from start of the time series to the point equal to 0.
Another problem im facing is in plotting a vertical line. How can I do this?  

Answer 1

Hi thanks for the reply.
I have attached the report I have made. I have written a VBA code to fill in all the details and graphs accordingly. Now the test requirements are as given in the table. I need to specify that in the graph. I dont want the encircled straight line. Just the 2 limits from 10 to 30 ms. In fact the more correct and logical wasy of representing the limits would be 3 horizontal lines, 1 at 10 ms from 22.5-27.5g, 1 at 20 ms from 17.6-22.6g and 1 at 30 ms from 12.5-18.5g.
Hope i have put my doubt across clearly. Again with the code you have given, I dont know how to 'tell' diadem to plot that particular graph in that particular X-Y plot in the report/LPD.
For the 2 lines, this is the code i have written.
'Find 10 ms time
        L3= ChnLength(1)
        L4 = 0
        Do while (L4 < L3)
        L4= L4 + 1
        R1= ChD(L4,1)
          If (R1 > 0.01) Then
                Exit Do
          end if
                 Loop   
        L4= L4 - 1
        LT10=L4
'Find 20 ms time
        Do while (L4 < L3)
        L4= L4 + 1
        R1= ChD(L4,1)
          If (R1 > 0.02) Then
                Exit Do
          end if
                 Loop   
        L4= L4 - 1
 LT20=L4
 LT1 = LT20-LT10
          For i  = 0 to LT1 'Lt1 is var for channel length from 10 ms to 20 ms
            ChD(LT10+i,"Upper limit") = 27.5-(4.9*i/LT1)
          Next
 Thanks again. Waiting for your kind help!
Attachments:
neck cal.jpg ‏150 KB