How Do I Create Vertical Lines In A Line Chart?
Hi everybody- I have created a line chart with 20 weeks of data plotted across the X-axis (each data point corresponds to the response rates to a direct mail campaign). I now want to plot two vertical lines showing the start of the campaign (week 4) and the end of the campaign (week 16). I know I can manually draw a line, but these charts need to be updated on a regualr basis, and it will take me hours to manually move the lines on the 100 or so charts I produce. So I want to have someway to specify a start date and end date, and have the charts update automatically.
