Help with "recession bar" graph

*To*: mathgroup at smc.vnet.net*Subject*: [mg45945] Help with "recession bar" graph*From*: Mark Coleman <mark at markscoleman.com>*Date*: Fri, 30 Jan 2004 04:16:24 -0500 (EST)*Sender*: owner-wri-mathgroup at wolfram.com

Hi, I was wondering if someone might assist me in the construction of a "recession bar" graph. This type of graph is often used in economics to depict interesting sub-periods on a time series graph. .For this type of graph, the user would specify one or more intervals of interest. Each interval would be depicted by a shaded vertical column, the width of which spans the regions of interest (image a series of possibly irregularly spaced vertical grid lines, with shading in between). For an example, see http://www.cepr.org/data/eurocoin/recession/ I've been trying to figure out a way to get gridlines to do this in LIstPlot. Any ideas? Thanks, Mark